Everything You Need to Know About Seiko GMT - In-depth Review of Seiko SSK series and 4R34 Movement

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Seiko's new GMT watch is amazing! We spend a good amount of time testing the Seiko SSK003. We even took it apart to see what's inside the watch, and discover how Seiko managed to make this watch so affordable. This is as in-depth as in-depth review can get.
We'll cover the design, what we like and don't like about the watch, the GMT function, the movement 4R34/NH34, and its mod compatibility with common Seiko mod.
This is an unpaid review. Opinions are thus unbiased. We aim to provide an honest, objective and comprehensive review of the SSK003. Hope you find this review useful.
Timeline:
▶00:00 - Introduction
▶00:38 - Key specs
▶01:05 - Design
▶01:54 - Cyclops
▶02:08 - GMT bezel
▶02:51 - Chapter ring
▶03:06 - GMT hand
▶03:43 - Lume performance
▶03:58 - Cutting corners
▶05:14 - Looking at 4r34 movement
▶06:28 - Mod possibility with SKX
▶07:06 - Final thoughts

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Опубликовано:

21 июл 2024

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Комментарии : 131

@DIYWatchClub Год назад

Our first ever watch review! It's super exciting to try this new form of content, and I spend a (exceedingly) lot of time to come up with this review. I'd love to hear your thoughts on this review, whether it works for you or not, and how I can improve on this type of content. Fire away down below!😉

@deanwoods9294 Год назад

Looking forward to you guys bringing out a new GMT kit! Great review...it's nice to see you pull a watch apart during a review and get more into the technical side of things as opposed to just focussing on fit and finish like most youtubers

@DIYWatchClub Год назад

That's exactly what we try to provide the the community. Real in-depth review. Btw we DO have a GMT kit now, go check it out! shop.diywatch.club/collections/special/products/new-arrival-diy-watchmaking-kit-nh34-gmt-dive-watch-with-extra-strap-dwc-d03

@1968jpy Год назад

I’ve had my SSK003J1 now a little over a month now . I’m seriously loving this watch a lot . The only thing I changed was I added a Marine Master clasp to the stock bracelet. Definitely gives the bracelet experience a serious improvement. I own the SKX009 and this new GMT is giving my SKX a run for it’s money 💰. Receiving this watch is the most I’ve been excited for a watch to arrive in a long time. The SSK003J1 blueberry did not disappoint, extremely happy and pleased with this watch 😄👍🏻💯

@DIYWatchClub Год назад

That's a nice clasp upgrade!

@1968jpy Год назад

@@DIYWatchClub thanks. About two years ago I did the same with my SBDC033 Blumo and when I realized the bracelet tapered to 18 mm I ordered one right away. I just wish Seiko made a 20 mm clasp like this as well. The Marine Master clasp is one of the best adjustable clasps made for a watch .

@jamesdaly1111 6 месяцев назад

I bought the Scattered Waves NATO strap from the Seiko Boutique and I love the way it looks

@bullitt8986 24 дня назад

@@1968jpycan you send a picture of it? Just got this watch and it’s beautiful. Only complaint which it’s still totally fine. Is the clasp.

@edscoble Год назад

Subscribed because you’re the only one whom made watch contents accessible by having closed captioning (unlike other like Teddy, W&W, etc.)

@HOPP750 Год назад

Love that you guys are covering other potential mods!

@DIYWatchClub Год назад

Modding is the best part of DIY!

@WhatMACHI Год назад

Really enjoyed this review! Looking forward to the next one. Thanks

@Nadinetherescuehound 11 месяцев назад

My wife just bought me this watch. My first true automatic legit watch. I'm tickled to death. Dial is stunning and the second hand sweep against that dial is very beautiful. It wears smaller than it lists on the wrist too. Skinny wrists are good cause L2L is shorter than most it seems. Wears like a 40. Fabulous watch. Recommend to anyone looking for a watch where you can invest your hard earned coin, into a do it all type durable case with movement that's going to be attractive to collectors in the future. First model year on these watches with this movement might be a wise investment, just for collection, let alone a beautiful watch.

@DIYWatchClub 11 месяцев назад

Fascinating to hear your beautiful review! Glad you're enjoying it!

@natraj5689 Год назад

I bought this watch & waited for someone to review it and here I am, thanks mate!

@Innovate22 Год назад

By far the the best video review of this watch on YT.

@jamkirton1 Год назад

Great review, lovely watch. Keep them coming. 🙂👍🏽

@preelenede Год назад

I just got it. After adjusting it, (which is really easy) I finally wore it and it feels good! Nice looking and I saw people looking at it. It’s an eye catcher…

@albertofavero2595 Год назад

I liked the offering by Seiko in this option for a GMT watch. Realy considering in own one of these models. Congrats for the video.

@Frankiewizard Год назад

Absolutely amazing, keep the videos coming.

@DIYWatchClub Год назад

Thank you for the kind comment, that means a lot to me!

@MWH_Watch_mods Год назад

Great stuff! BUT, if you want to change the dial, you have to ensure the central hole is slightly bigger, due to the central stem being slightly bigger. (I just found out the hard way 😱😥) No worries, I’ll use a diamond file to slightly enlarge my Marinemaster dial.

@GarNelson1 Год назад

I'm personally more excited about the NH34 movement being available than the complete watch SSK003. The only part missing is an easy way to expand the center hole in aftermarket NH35/36 watch dials.

@alanmckinnon6791 Год назад

You use a broach or a reamer, a standard jewellery maker tool. You'd likely need to clamp the dial between two supports (2 large acrylic washer-shaped object?) to prevent the dial flexing and chipping the paint on the dial

@paulkett8414 9 месяцев назад

Great review I've owned mine for a month now and really pleased with it! I've noticed it loses 5-10 second's a day but I've researched that this is normal for this type of movement? Would a service pick this up and adjust the speed at all???

@WatchDaTime Год назад

Bought it last week. I love it 🙂

@pokie6087 Год назад

Just subscribed. Great review.

@DIYWatchClub Год назад

Thanks for the sub!

@JL-xn3zy Год назад

Great review.

@shepleonard8695 Месяц назад

Picked a NIB SSK001 from AD for $302 OTD. Love it!

@danielalex1738 Год назад

i love that seiko is putting a gmt int a seiko 5. If they keep koing with this pace we wil soon get a perpetual calander turbillion seiko 5

@DIYWatchClub Год назад

😂 Go Seiko go!

@brianmsahin 3 месяца назад

Very nice watch and very nice video. Just subscribed !I'm sure you know by now that the bezel insert is hardlex glass, not acrylic. I just want to ask. Did you find out if we can fit an NH34 movement into a Seiko 5 SRPD model ? Maybe you made a video on it , but I can't find it !

@jeholloway2 20 дней назад

Got the yellow model. Beautiful watch. Runs 19 seconds fast. Comfortable. Hoping they will come out with more colors.

@pompeylad1977 Год назад

Great vid, I’m very interested in getting one and would love to know the other ways to utilise the GMT as I have no use for it for different time zones and always use the standard 60 minute dive bezel for measuring time elapsed on my SKX and 5KX so can’t wait to see the future vid, thanks.

@DIYWatchClub Год назад

I'm making a video on exactly that, stay tuned!

@masteranakin8827 11 месяцев назад

Most people who are into watches know how to use a normal watch as a compass, but with a GMT it is even easier. With the small hour hand pointed at the Sun the GMT hand points roughly North, when in the northern hemisphere, when in the southern hemisphere it points south.

@Floodbait_117 Год назад

I got one of your kits for xmas and love it its like +/- 5 sec compared to my citizen fugu at like 15 +/-

@DIYWatchClub Год назад

Glad you like it!

@justmeeagainn Год назад

It was a fun watch for a couple of months. Now it’s in my sock drawer.

@marcsmith-wl9pw Год назад

I’m getting the 001 can’t wait.

@shoesters6298 6 месяцев назад

Got mine in orange love it

@davidwatson7984 6 месяцев назад

I have the SSKoo5 like it so far got a great price. It keeps great time.

@shakeswigglez3746 Год назад

I just purchased A Pagani Design 1662 with the NH34 movement in the Batman model for $100. Not as nice quality as this watch but it's a good watch for someone on a budget like myself.

@discountmorty213 5 месяцев назад

I been winding 4r34 for like 80 turns thinking how come it can wind for so long then I read that the movement cannot be overwind as in it got a overwind protection?

@user-ce5ow2wl3d 11 месяцев назад

Hi, can this watch be added a screw down crown?

@SpaceMagicStorm Год назад

If it had sapphire window and a clicking ceramic bezel it would be perfect i would pay an extra couple hundred for those features if I had to but truthfully I doubt it would break 600 cost. Also would like the s logo on the crown but that's a personal preference thing.

@HenryDarr Год назад

Waiting for you to do mods 💯

@blueeyes183 Год назад

how much it cost to upgrade into saphire for this watch with cyclops

@SonalShekharBhoi Год назад

How is the accuracy overtime?

@shawnwilliams4187 7 дней назад

I would like to know how come when I don’t wear my watch for a couple of days it stops running, is it ran by light I’m pretty sure it has a battery

@Sov92 Год назад

I have two of these. I have the black one and the blue one and they are both awesome watches. I think I like the black one. A little bit better though.

@DIYWatchClub Год назад

I envy you!

@TheMonsterHunterTV Год назад

I'm a huge Fan of black and blue dials. But i got a crazy discount on the orange model so i tried it. Really something else but it fits the watch perfectly

@williamnatalius1942 Год назад

@@TheMonsterHunterTV how much you get for the orange one?

@todaysgrailtomorrowsbeater Год назад

bravo lads

@aviator_bryan 15 дней назад

The Seiko is a nice looking watch. However, the San Martin SN015 GMT has higher specs, and around $100 + dollars less in cost. It has a 4hz (ETA clone) movement, sapphire crystal, screw down crown, 200M water resistance, better overall finish of case and jubilee bracelet (with screws not pins), bi-direction bezel with click, anti reflective coating, super bright lume on dial AND bezel, signed crown... I feel like there is more, but you get the idea.

@Mobimanie 5 месяцев назад

I love my SSK but it looses 24seconds every day. Which makes me sad. I wonder if I can find a Watchmaker to regulate it better. The Timeloss is very consistent though…

@romeo6048 8 месяцев назад

A very good watch but IMO, a raised cyclops date window without a sapphire crystal is a deal breaker for me. I would go with the Citizen GMT/Diver BJ111-86L hands down.

@likhan.ghosh. 2 месяца назад

Love this. Just wish it didn’t have the ugly 5 printed on it. I’ll stick to my SKX007J

@TerminusVox Год назад

While I can't afford a Seiko movement in a Seiko case I can afford a Seiko movement in another brand's case. I'm hoping these movements make it to the wholesale market sooner than later!

@DIYWatchClub Год назад

You can actually buy it now! Check it out: shop.diywatch.club/collections/movements/products/seiko-gmt-nh34-movement-tmi

@SrJonAnthony 8 месяцев назад

Sub 300 shipped is not more than microbrands lol

@darmamobilindo Год назад

Masalah apa yang sering terjadi pada seiko gmt ???? Tolong beri tahu saya

@richardharris2042 Год назад

I doubt the lack of screw down crown has anything to do with the water rating. The crown/stem design is exactly the same as SKX or Marinemaster, ie, the gasket is on the stem not in the crown head. I would presume the lower water resistance is because of the see through case back.

@ayayoutuber Год назад

plenty of 300 and 200 m see through case back watches... it's not just the back.

@SrJonAnthony 8 месяцев назад

Its not about the gasket, its about holding the crown down and tight. If its out and loose then water gets in no matter the gasket or oring. This a sport/diver not a iso diver. Iso must have screw downs, etc.

@richardharris2042 8 месяцев назад

@@SrJonAnthony The gasket on the stem has no idea whether the crown is screwed down or not. Threads on a metal crown provide zero extra water resistance.

@SrJonAnthony 8 месяцев назад

@richardharris2042 threads when tightened squeeze the gasket. What are we debating here? When the water pressure exceeds that of the "unsqueezed" gasket. Thats also why oiling the gaskets is important( repelling water). If your crown is torn off or bent while fully extended then water is getting in. Screwing it down prevents this. We all understand this right?

@richardharris2042 8 месяцев назад

@@SrJonAnthony the gasket is on the stem not in the crown, it is not squeezed, it's not a Rolex or Vostok

@westdoc Год назад

I bought this watch when it came out. Great bargain. But, I had to return it to Seiko twice when it just stopped running. And it runs slow. About a minute every three or four days. Frustrating. But I am wearing it now.

@jonatansterling397 Год назад

How about the accuracy of this watch ?

@DIYWatchClub Год назад

Seiko claims a factory standard of +45 to -35s/day. Our sample comes in at +6s/d. But if you want to improve it yourself, you can always regulate it yourself: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vz_1rhl1lvY.html

@soundscaperecordings1111 3 месяца назад

Miss aligned chapter ring galore. I've bought 3 all the same. Starting to give up on Seiko budget quality control

@CACOPHONIE Год назад

❣️❣️❣️

@DIYWatchClub Год назад

💙

@morrieglick4137 Год назад

Wonderful video. I like the ssk003 very much. My only hesitation is how scratch resistant is the hardlux crystal versus a mineral crystal. I know sapphire is the best. I have a Buleva with mineral crystal - the scratches drive me crazy. Thanks in advance for your reply.

@DIYWatchClub Год назад

@@morrieglick4137 Hardlex crystal is just a slightly better mineral crystal. It's not a big improvement in terms of scratch resistance. Aftermarket replacement sapphire crystal might help you in that department

@ufrl0216 Год назад

Funny I never heard the term "true GMT" before this watches release. Could the Swiss be upset the Japanese cleverly converted their day complication to GMT providing extraordinary value?

@justmeeagainn Год назад

It’s more the case that this GMT works backwards. The hour hand is supposed to keep track of local time and have a quick-set feature.

@kazuyukitomita891 8 месяцев назад

I get it now that you have explained it to me, but I wouldn't have thought of that by myself. ⭐🕒

@MrSandperson0 11 месяцев назад

SSK transplanted into a SKX!?! 🤯

@SkylineBilip Год назад

Damn you. Now i want one. but I need to get a root canal done so.. cant. GAH

@DIYWatchClub Год назад

Get it after the root canal to soothe the pain 😉

@joshsher6327 4 месяца назад

I've had this watch for 3 months now. Like it. But case diameter should be 40mm at most. Case height should be lower from 14.5 to 13mm. And if Seiko makes it water resistant for 200 meters like its predecessor the SKX, it would be the perfect GMT dive watch under $500. By the way, a true GMT movement is overrated. Sure, you can move the hour hand, but setting the date is a pain. The date on a caller GMT is a lot easier to set.

@gs4854 7 месяцев назад

No screw down crown was a deal breaker for me on this watch

@soundscaperecordings1111 3 месяца назад

You a deep sea diver then? If not 100m is enough

@adenovirus. Год назад

I want a white face so have to go pagani homage with seiko movement.

@fortbend7517 Год назад

I really wish there was a way to get rid of the seiko 5 logo on these dials. It would be the perfect sub $500 watch if they did away with it.

@SrJonAnthony 8 месяцев назад

Seiko 5s are their own line so no reason to do that lol

@SilverBackELTorro 5 месяцев назад

The selling point here is the looks more than the build and movement. Not sure at that price point.

@betruly7894 Год назад

Orient should come with GMT to save us

@DIYWatchClub Год назад

If they do it's gonna be a banger

@hanzville8840 Год назад

I’m having a hard time to lock the crown. It’s all the way down but it’s still turning. Can someone help me. Thanks

@SrJonAnthony 8 месяцев назад

So you dont watch the videos you just comment. Interesting.

@FabioPascuaThePilot 5 месяцев назад

It can not be locked, it’s a pull push only crown, it is said on the video and in the owners manual too…

@bajbirlimbu5644 Год назад

Prices Uk £

@idontlikestuff Год назад

From what I know you dont use watches like these any more when you dive. Unless you're a poser of some sort. Its funny how nearly every watch reviewer I've watched on this lists 100m as a con. Yet they probably never dive. This watch makes the prices on Rolexes etc seem like a joke to me. Great watch.

@idontlikestuff Год назад

Your video was great by the way. I dont count you for that comment on the wr depth.

@SrJonAnthony 8 месяцев назад

Iso divers are for diving, WITH a dive computer. This is a sport diver, not real diving lol, young people are always saying bs about these, they dont understand design aspects/logic.

@idontlikestuff 8 месяцев назад

You sound really old using words like "lol". Nice try though.@@SrJonAnthony

@SrJonAnthony 8 месяцев назад

@@idontlikestufflol you soud really dumb if thats your main take away. Smh ur a goofball hey. My reply agreed with you and was referring to the same people you were talking about. Now i see your just out here hunting some confrontation. Dam. Your funny lol

@LWRC 9 месяцев назад

The best GMTs are the ones made by Rolex. There are many variants but my next one, to add to my current two, will be the white gold GMT! I don't see there are any manufacturers out there that even comes close at any price!

@alejandromorazan3420 Год назад

its pretty good but too damn small. i want to love it but my seiko prospex samurai is the perfect size

@SrJonAnthony 8 месяцев назад

42.5 waaay too small? Lol.

@mikey9154 11 месяцев назад

Alpinist or gmt?

@Leo-Crespi 10 дней назад

Good but a 5 Sports is not a diver, the comparison with SKX makes no sense and btw the root of that case is the 7548 (1978) not the SKX (1996).

@aybcd Год назад

for me it is a no buy from the store, I would buy in 1-2 years second hand tho for the fraction of the price

@stephanemarx6449 Год назад

The only smart settings are rolex gmt because you move the hand the hours and not the 24 hours hand !!!!! so smart

@SrJonAnthony 8 месяцев назад

This is setup the way most pilots etc want it to be.

@suvidhvongpunsawad4 9 месяцев назад

Ilikeitverymuchialreadyboughtoneandalsoarolexexplorer2gmtthankyouforyourgoodreview

@ayayoutuber Год назад

I know it's not a GMT, but I end up buying a TISSOT PRX power 80 automatic instead of a Seiko GMT..... it is almost same amount of money 500-600$... and I got a saphire crystal, swiss good quality movement compare to the Seiko's movement that looks very cheap and unfinished.... it is almost like a 200-300$ Seiko 5 quality....except the GMT function.... so really you are not getting a bargain. I think I will wait till more GMT on market and this GMT will get push to more sub 300$ price. the GMT is a really low cost addition to the Seiko cheap movement ..probably only cost few dollars and they charge 200$ more for the watch...

@CraigandJoan Год назад

It’s not a true GMT so what’s all the fuss about?

@SrJonAnthony 8 месяцев назад

Explain the actual differences your trying to highlight and youl find your answer. If you can find another gmt for 300$ with this much heritage and class please let us know, thanks!

@user-yf5xp3pv7o Год назад

What is true what is not true

@eliteelite7428 Год назад

Crystal glass, no screw crown,pathetic 41h power reserve...this is a joke haha for over 450 usd👎👎👎

@DIYWatchClub Год назад

Find me a watch at 450 USD with sapphire crystal, screw down crown, 48hr+ power reserve, AND mechanical GMT and I'll snatch it up immediately lol

@jetaddict420 Год назад

@@DIYWatchClub the watch i made from chinesium components lmao

@DIYWatchClub Год назад

@@jetaddict420 Why buy from a brand when you can DIY something better, right? 😂

@ivanmejia6843 Год назад

@Elite Elite It's actually a bargain for what you are getting. You will probably buy a Chinese homage brand with those specs you mention under $450, no doubt. Ironically, it will have an NH34 (made by, cough cough Seiko) because those Chinese brands are not capable nor have the knowledge of making a movement themselves. Let the big boys such as Seiko, Miyota make the movements. Keep buying your cheap, high spec. homage watches.

@SrJonAnthony 8 месяцев назад

All watches that arw hype get inflated prices at release to take advantage of said hype, thats how pefit and business work. Theyre 300$ now and nothing beats these at 500$.