Seiko Marinemaster SLA021 - on my 6.5" wrist | Hafiz J Mehmood 

That was the best review for the MM300 out there. Totally agreed with the plusses and minuses of what you mentioned. Other than that the watch is superior in every aspect. Cheers.

Over engineering, understated accuracy, Japanese brilliance

I'm of the (very) few that actually appreciates the adjustable clasp. My sizing will subtly change pre and post workout (as well as hiking at altitude), having plenty of other watches with rubber and Zulu straps, I've grown quite fond of this particular steel bracelet being to adapt to what the day brings.

Just got my mm300, this video is the one that pushed me to pull the trigger. Awesome video, awesome watch! Much appreciated! 👍

This is the BEST review I’ve seen! Great work

So we have a new good RU-vidr! What a great review! I'm subscribed !!!! Looking forward to see more of your work!

Awesome review, great shots and really well structured, helped me decide with my small wrists.

Bought one today - Super excited after watching this vid. Well done hafiz

Well done!! Just got the SLA023. I was a little nervous how it would wear on my 7 inch wrist, but Seiko works their magic and it wears big, but well in my opinion. Thanks for explaining a bit about how they do that. Great review!

Impressive video! Very articulate. Glad I was able to find a new old stock 001. The Marinemaster on the dial is a large part of the allure. Subscribed.

Excellent review of my favorite Seiko and next purchase. Either the SLA021 or the 023 in blue dial. Both are gorgeous. Nice job!

Just binge watched all your reviews, great quality; Keep up the good work bro👍🏽.. & the mm300 🤤🤤

Just bought this piece last week, waiting anxiously for it to arrive! Thanks for the video, gives me more depths of understanding about this beautiful watch.

Best vid for SLA 021 on YT . 🏆👍 👏👏👏

Best marine master review on the tube (or anywhere else) nice job, and thank you! I've watched this same review at least 5 times in the last 3 days hahaha so good.

Wow, absolutely impressive video! Great story telling too.

Hi, I am a happy owner of this magnificent watch. The materials, the quality and the history represent a unique style. The monobloc case, in a few houses they still manage to produce something similar. thanks for the video

Great review and yes you uncovered the secrets why it wears small. I have a SPB079, mm200 and it's also around 44mm but yet wears much smaller than a turtle at 45mm. The bezel is smaller than the actual diameter of the watch and the true diameter is hidden by it's polished flanks which blends in with ones wrist just leaving the bezel to view. Also the last 2 mm at the end of the lugs are polished too and have the same effect. MM300 is on my radar. Thank you brother..

Thank you, Hafiz! Looks great on your wrist.

My brother, I loved every minute of this review!

Excellent review one of the best! I’m subd waiting for more!

Another awesome Vid Hafiz! Loved it

Here again a world class video. Astonishing pictures and in addition relevant jugements on the watch. Thank you gentleman. I think the text is maybe the best of your video. I know many people prefer your images. But the camera is making the images where as the thoughts about watches are 100 % fruit of your watch world understanding.

I have the blue one SLA023J1, and I like it, best I could afford! I got it 21 days ago, and I wear it every day.

A+ review. Balanced in all aspects. Keep it going 👍

This is a brilliant video. You nailed it.

Captured the manship of Rolex, adding a soul of Seiko, the compose is next to perfect. 😊

All your videos are the best..i like it

Great shots, keep up the good work

Thanks for the compelling review. The MM300 is an icon.

Agree the loss of MarineMaster loses its identity

Nicely written review. Also surprised how well it fits you.

Another great upload ! Really glad I found your channel. Just want to share my experience on this piece. First of all, this is one of my fav diver's watch that i've owned. However, it's sad to say that the watch is no longer in my collection due to several bad experiences with it. Lucky you, you've got a unit with great accuracy of +1 ever 2 days ! On my unit, I'm averaging at -15 seconds per day worn, and -8 seconds per day unworn. When i send it back to the service center, they claim that it is within their tolerances and will try to send in for warranty claim nevertheless. However, they advice that I continue wearing the watch instead and just send the watch in for a full service under warranty claim when it is reaching its end of warranty as it will take 4 months to service (it needs to be sent back to Japan). I've decided to live with it back then and 3 weeks down the road, the bezel got stuck and difficult to turn. I have to say that i'm just a desk diver and keep my watch extremely clean everyday. That being said, I sent it back to service center again and the watchmaker fixed it under 30 mins, telling me that its the bezel lube that dried up and probably caused by Malaysian weather. Went back, and the bezel got jammed up again after 3 days. I've lost confidence of this watch since then, and sold the watch short after. Nonetheless, this is a great watch to admire visually and also it felt like a solid tank on the wrist ! Lume is superb but the flaws within and the rough second hand really puts me off. I still love the look of it now and really hope that seiko will one day UP their game on this.

It’s a real piece of engineering. Pure quality. Seiko also doesn’t pay Federer eight millions per year, nor sponsor F1 like Rolex, so the prices of the brand rise but not for the quality

I've owned this watch for several weeks now and after the first day, I've never had an issue with accidentally pushing back the piece that adjusts the sliding mechanism. I love this feature and wish all my watches had it (minus the extra sized clasp)

Beautiful watch

Great video. The case is incredible. The bracelet is less than optimal I agree. Just bought a strap code hexad bracelet. Steel doesn’t quite match but the bracelet is nicer than Seiko’s.

Excellent presentation and review...well done!

SLA021 looks good on your wrist. Thanks to this video I think 5KX will also fit nicely on my 6.5" wrist since it's a bit smaller.

What a great review!!! I have this masterpiece and your review made me a proud owner.... Photography, sound, text, storytelling, all in your review is absolutely great!! You gain 1 like and 1 subscriber in 1 shot!! 😉😉😉

Started getting back into Seiko and watch collecting recently and really appreciated your review. I was shocked by how small the MM300 and MM200 reduced are and how they wear even when compared to my Omega Seamaster Chrono which measures smaller. I wanted to love the MM300 but on my 7.5 inch wrist the lug to lug and width seem too small and then its so thick forget wearing it under any sleve. As a pure diver its rightfully iconic and superb quality, as a daily diver I would put well down the list of Seikos to consider.

Great review! Thank you 👍🏼

Great review, I have the same size wrist as you, I’ve been wearing a first gen monster for about 15 years and thinking of upgrading to this one. The size is making me nervous though.

My MM300 (SBDX025) is about +12 seconds/day. Still a great watch...even better in blue.

Amazing video my dude

Excellent review that well expresses the allure of this watch, that even its imperfections become part of the seduction. Not saying it is better than Rolex but it certainly is not as boring as its swiss competitors. It also holds up very well to the debate regarding whether it might be the better tool for the job (i.e., sat diving, its rigors and context).

Terrific review. Many thanks🙏🙏😊

Very nice review of my favorite watch.

Thank you for your nice review, appreciated.

Great review, well balanced and informative. I think it looks great on your wrist. This or the Doxa sub 300t that is my first world dilemma 😂

I agree. Seikos clasps are still what is holding them back.

Fantastic review!

One of my favourite watch of all time. Lucky as I got mine at a big discount :-). Not sure that I would pay the full retail price, even thought it is a great watch.

I have small wrists too. Seiko divers are great and work on small wrists too

Perfect!

That text marinemaster made me want to get the sbdx017 instead. PX text doesn't appeal to me. Great review as always. I don't think that Rolex has removed the text GMT or Submariner in their watches. This is a sure formula for success.

Bravo! Very nice content. Subed.

Cool man.

I have been wearing Marinemasters for over 15 years I currently have three SLA059 023 and 021 and a little trick I learned years ago by mistake changed my view on the bracelet , simply reverse the bracelet and two things happen , it’s actually a more natural move to open and it will be the last time you activate the extension , give it a shot

Superb review 👌

Great review dude. Definitely going to consider the MM300 for my 30th birthday! Also great shots, what camera setup/settings do you use?

Nice video As a diver ,and still use a watch as a backup. The bracelet is fine for its intended use,to open and close with the compression at depth. The adjustment is a bit to be desired with the little collets half way through strap,I'm sure they are up to the job though. The rubber ones are good although the weak point is the buckle spring bar. Mine i have replaced with a zulu heavy duty strap ,no chance of losing it anymore even with a spring bar failure, not much chance as the bars are very strong on watch. As for time keeping mine gains few seconds a day. Not really bothered about that or the misalignment, luckily mine is fine. Otherwise its a great watch and wish i could have a blue,green,model to.

I bought one last month, wearing it is a very different experience from wearing other watches at this price point. It presents an issue for watch collectors because you end up wearing the MM300 all the time. Just because, apart from formal, it is just so easy to wear. I've been guilty of wearing it in scenarios where I would normally wear a Gshock or Elliot Brown I find myself wearing the MM. It's picked up a few scratches but I don't really mind this at all. The one thing I am concerned about will be the servicing. Bracelet: I actually find it very comfortable, ok it's a Seiko bracelet but it works fine on my 7.5 inch wrist. I pre ordered a Strapcode Jubilee but I find myself wearing it on stock bracelet. I don't find the extension activates when I open the bracelet, in fact, my one isn't that easy to activate as an extension. The watch wears best and most comfortably on a quality 3rd party tropic or waffle strap. My one is accurate within a second as well. I'm now considering selling my other divers. It's essentially the perfect luxury dive/tool watch for my needs.

I have been watching your reviews, really really great, thank you. Would you be so kind as you give me your thoughts between this and the Grand Seiko SBGA231 as to its wearability aspect. Would you consider them very similar on 6.5” wrist size. I have notifications on for the first time after watching your reviews.

Thanks for the excellent review. I bought an MM300, the cheaper Hardlex version, 3 years ago, and I found it played too small on my 8-inch wrist; however, I am tempted to get the new midnight blue version; just don't know if I want to spend $2.8K on it. Thank you for explaining how the dial within the dial makes it play smaller.

I'll stick with my MKI model thanks.

The quality of watch sans the perceived overthickness plays circles around Swiss counterparts especially with price definitely is a looker, it’s the only one that makes me happy as all my seikos/grand seiko watches are best value I have

Great review. What a lovely watch. It’s a shame about the removal of ‘Marinemaster’ from the dial and the hassle of thy bracelet extender. Ultimately, it’s still beautiful and perfect for someone who loves tool watches and watches that are special without being Swiss Made.

Hey Hafiz, please do a hands on review of the new Prospex Lx diver SNR029j1 too.

👍👍👍

hello I'm from Indonesia and i am a big fan of the videos that you produced, considering the price for this mm 300 is similar to the tag heuer aquaracer calibre 5, i was wondering which one would you recommend, since i have a similar wrist size as you do being 6.75, between this mm300 and aquaracer in 41 mm which one would be a better buy. I'm 21 right now and looking forward to purchase a good quality watch for myself, it would help me a lot if you can answer, thank you and best regard

HI Would be great to have a comparative video of MM300 with the SD43. Thanks

There are so many different versions of marinemaster that it gets confusing. It will nice to do a video of different models and it’s differences.

The biggest blander seiko made was to remove the marinemaster off the watch. They had a legend sub competitor in the making and they discard it along with all the history they build over the past sixty years. A new high quality bracelet, a regulated 8L35 movement and put back the marinemaster name, and sell it at $3500, you have a huge winner on hand.

Thanks

Because the Sumo's clasp can be replaced for this one, I would assume you can do the reverse of you do not like the MM300 clasp.

Outstanding review, I am contemplating buying the "baby marinemaster" because of its reduced size (my wrist size is about 7") but after seen how well you wear it on your 6.5" wrist I decided to get me one. You got a like and subscribe from me. Best regards from San Juan, Puerto Rico.

4:43 is this chapter ring misalignment? It is not noticable on every hour marker which means that the markers itself are not propery aligned...

Seiko have done some strange things over the years, but really it is all about selling lots of watches at the end of the day. Kumeer Hafiz

I probably watch this video over 100 times 😂🤣😂🤣

Can you please make a video on Seiko SPB 143 & 145 ?

If I missed it, it wears smaller bec the bezel outside diameter is 42mm, nice video though regardless whichever watch is presented.

Vintage Time Australia did a video disassembling the 8L35 movement. He said it’s basic, NOT a GS movement, and the watch has to go back to Seiko in Japan since they won’t send parts which adds tremendously to the cost of ownership.

I dont think it has the zaratsu polishing. I havent found any literature online that states that. And I own a marinemaster and the polishing doesnt look like that on a grand seiko. If you have a source please provide. I would like to know. Thank you.

does sla021 have a ceramic bezel? I see some sites market it as a ceramic bezel but on seiko's website it says stainless steel bezel for the black version and ceramics for the green and blue version. It really confuses me.

Great review, great macro! Totally agree about the Marinemaster/Prospex branding. Madness from Seiko. Prospex branding on a watch this expensive is crazy - it looks cheap. But a beautiful tool watch nonetheless. Some finishing is poor though. Those hands aren't great, neither the hour markers. Not as good as Omega and this watch is nearly as expensive as a Diver Professional 300. Not a Patch on GS. The bracelet also is nowhere near Omega standards. Like the old MM300, this is really a sub-$2000 watch, not a $3000 one.

does it wear smaller or bigger than the 216570?

Great review Hafiz! Seiko are bonkers they're deliberately trying to annoy people by getting rid of the Marine Master name! Like you said, they had been doing their image a great deal of good and then ruin things by putting the prospecs logo on there, I don't mind it on my turtle but I don't want it on my MM!! 😨

Can anyone tell me please, why don't the 30, 40 and 50 on the bezel Lumibrite? Can someone tell me the reason. Thanks.

Your wrist is 6.5” circumference? Looks bigger, My wrist is 6.5” and having 2nd thoughts about buying a seiko mm. I really like it but I just think it’s too big for my wrist

i have a similarly sized wrist, and when i went to try this one at an AD, i couldn't believe how uncomfortable the watch is. it's just too tall, making it feel very very top heavy, constantly reminding you it's there. it also looks very tall, as if i put a tin can on my wrist. you explained well how it looks and feels and wears smaller from the diameter, top down view, but that nearly 16mm thickness can't be hidden and it's a huuuuge negative of the watch. considering the price, i'd rather have the Seamaster (which has better quality control, is better sized, has a better movement, which you can see, has a much better bracelet, and is significantly thinner and more comfortable), just to name the most obvious alternative

At this price point, the chapter rings being misaligned with the indexes is unacceptable. Great video tho

Which one you prefer the blue,green or this black one??

Hey there, does anyone know if the dial diameter is the same as the SBDX017? Best Regards

Could you make more seiko ones? Maybe seiko turtles

I only wish its minute hand is longer... In my opinion any minute hand should always reach the minute chapter markers. It has been my grail watch for many years, especially now it has a sapphire crystal. However, due to my shrunken wrist and life style change, dress watches have become my favorite.

Could some who owns one please post the weight sized ?

What’s you’re accuracy?

The alignment is not that perfect. But i love this watch

First year had a 18000 VPH MOVEMENT