Peter, the one thing I love about your reviews over pretty much all others (especially on watches you own personally), is that you focus more on how the watch makes you feel, rather than on the specs of the watch. So many simply focus on the specs and wearability of a piece. Your reviews seem to portray and awaken in us the connection with a watch that lacks in many reviews. As I have mentioned in the past, your review of the SLA043 in which you showed this piece, actually provoked memories of owning the SBBN031 and how I regretted selling it. So much so that I re bought it and am glad to say it is and will remain a keeper. It is a very special watch, and sits alongside my 043… Yup, double whammy 😆 Kudos on creating heart felt content 👍🏼

I've got the blue version, SBBN037, had it for years and never heard anyone call it ugly. I have had loads of people showing interest, asking what it is, and I always take of the watch and let them handle it. It looks clunky in videos but handling the watch in real life never fails to capture people, it's just such a quality piece and insanely nice.

What a quartz watch should be. Dedicated, purposeful and solid. Great review.

I never thought I would ever wear or evenlike a watch like the tuna, particularly as dive watches are not generally on my radar, that is until I fell in love with the street series automatic safari edition. I ended up putting it on a metal bracelet and it just looks and wears like nothing else. This watch taught me never to say never when it comes to watch collecting or you will miss out. It also taught me to be more experimental and adventurous as you can't truly judge a watch until you've owned it, worn it and if need be, tried it with different straps. Like yours it just keeps giving.

Peter I’ve owned this beautiful watch for over two years now. In my collection watches have come and gone but this one always makes me smile and I absolutely love it. It’s not going anywhere. Great review of a real classic.

Very interesting comment at the end. You know im a motorcycle mechanic and i love Japanese sportbikes. Lots of riders say that harleys or European bikes have a soul and a temper, and Japanese dont. To them i reply, Japanese have a soul. Whenever you start it, it will work. Whenever you need it to be a reliable friend, its there. It has a soul, a beautiful Japanese soul. I love my quartz, solars, mechanical watches the same. Each one for a diff reason. Wear what you want and be proud of it, and have fun. The only thing i dont accept is fakes. Thats illegal and morally wrong. Homages are ok by me bc almost every design was inspired by something. And swiss watchmakers were inspired by others long before there was any Chinese watch industry. That was long sorry.. Truely iconic. My oldest brother has one that still works for decades, that inspired that love for seiko, for me. Love your videos buddy.. 😊

Thanks Peter this has always been a special in my collection. Even though it’s not my daily wear. You’ve articulated this MM300 perfectly.

Perfect timing, Pete. Found a really prominent Seiko for a bargain last week (review will be next weekend) and man... when Seiko gets it right, they REALLY get it right. Beautiful Tuna. Having experienced models like the 6105 and "King Tuna" in past... their diver cases are all so special. Great video brother 🥃

Another solid reminder that we're in the hobby for our own enjoyment and happiness. Everything else is secondary. Slowly but surely I'm coming around. Thanks for the vid!

The video is excellent. It's exactly how I feel about my Seiko Arnie. I never though I'd wear it daily, let a lone a quartz movement, and it's been almost a year and I feel naked without it! The tuna is the definition of a strap monster.

I have the SBBN037 Blue Fin......And I could not agree more, thanks for the Video.

All Tunas need an Isofrane ;) I’ve got 3 - Scalloped , Kinetic and the latest Emperor . All 3 get used for their intended purpose. Great vid .. thanks;)

Bloody love these tunas - great video. That wipe of your logo round the watch face at the beginning was so satisfying.

Many thanks for your review and opinion on this watch. Much appreciated.

I’ve got the black version sbbn035 I believe. It’s still one of my favs in my collection, right up there with the Pelagos LHD and Planet Ocean (blue43)

Thanks for sharing Peter. Once again, congratulations on hitting 50K subscribers. I must say that the “Tuna” was/is never my favourite but I have to admit that the specs on this one are pretty great. Keep ‘em coming 🙂👍🏼

Great video, I own the all black 035 model. Wears well and amazing lume. Despite being a printed dial, the lume is brighter even than my marinemaster SBDX017 which features deep applied markers

I have the SBBN033 and its my daily. I love it so much.

Great watch 🎉

Got one too Pete, SBBN035 in blue, have had 5+ years now and it’s bullet proof. Diving in Southern Africa, loads of motor bike track days in the UK and EU , hiking in the UK, never missed a beat. Very accurate, second hand hits the markers every time and superbly comfortable. It’s got to be in the top 3 most robust watches in the world? What say you? Thanks, as ever, for a great review!👍👍

Very nice video! I have exactly the same watch. Really a great watch (bought early 2016). The first battery lasted over 7 years (and EOL wasn't on yet)... Runs within 5 seconds + per YEAR! Great watch, truly unique. I also think this is the most beautiful version with this dial & hands. I also love the convex glass.

I own the SBDY055 baby tuna automatic Seiko diver. Definitely one of the most unique and amazing 🤩 Seiko divers I own 👍🏻

Well said PK, from another PK that also finds this reference very special, and has zero concern for others opinions on my watch choices. I also love my solar SNE577 black series tuna keeper.

The seiko tuna is the only watch I have bought two versions of. I bought the latest generation in black and never bonded with it. 6 months later, I bought the blue in the same Gen and the one in this video. I love it.

Great review Pete. Stunning tools piece. Seiko has some brilliant designs (skx for example). Wear and enjoy in good health 😊

I used to think that a quartz watch doesn't have a soul, then I got the Hamilton PSR. One of the most characterful watches in my collection. Now, I would liken mechanical and quartz movements to wolves and dogs. I have a wolf dog now, and he is truly his own being. The day he feels like we don't love him enough is the day he walks out the door never to return. I've had a dalmatian who was also full of personality. But there wasn't a day she would choose to walk out the door when she knew she could sit by the stove and catch any food that dropped on the floor. Both quartz and mechanical can be full of character, or soul, but they're their own beings. Each should be respected for what they are.

It looks awesome on the bracelet.

I've owned this model Tuna Can for several years now, bought from Seiya on bracelet. I love this watch on strap!

I own one too, mine is a SBBN015J ( a few years older mine is from 2015 ) still on it's original battery, and still running normal. If I don't wear it on it's bracelet it's on a Isofrane rubber strap. I like it, it's a piece of art.

Great review and insights on the Tuna. I really like the look of it on the green sailcloth that you have, I’ve nearly purchased it a few different times, maybe a holiday gift. The supreme accuracy of the movement is something else. I set mine the 1st of June this year, it’s running 25 seconds fast, that’s just amazing. I pair this with the first generation Seiko Orange Monster and the MM 300 with the 8L-35 movement, all three get plenty of wrist time, all three are important.

I’m a self-admitted Seiko fanboy and absolutely love my SBBN031 Tuna. So much so that after picking that one up (a couple years ago) I also grabbed the 033, 035, and 037 and all four remain in my collection and will stay in my collection!

… ah and you got the kanji. That makes it even more special. Just saw one yesterday here in Tokyo at around ¥200000, double the price I paid for mine seven years ago. It’s a keeper.!

I have the SBBN033 and was thinking of selling it as I hardly wear it . But it’s a legend of a watch.

I have the same watch and i can confirm it is something special.

Another great review Pete. The Quartz movement comments are interesting. As a newbie I tentatively to be drawn to that beautiful sweeping second hand and only tend to seek out automatic pieces. I need to do a lot more homework on movements as there is so much to learn.

Love how you have it on the kanji day wheel.

One of my favs

Last week you left a comment on a talking timepieces video. I replied that both you guys were two awesome watch KZfaqrs…..a week later you drop this tuna video and proved my point.

Seiko is the only brand that I find something I love in every single one of the Prospex offerings. No other watch maker has that capability. Seikos are amazing......and very addictive. 😂

Great vid Peter. Hands down, a favorite in my collection. Would love to see reviews on your others.

That's a beautiful watch in my opinion. Enjoy

Opening credits (putting the watch down and the PK logo melting in) were not lost on me. Very slick ..... 😉

Ive got the SBBN015 more then a decade ago and its like new. the only modification was a sapphire crystal when I bought it.

I love the Tuna designs. Been through many.. keep trying to find THE best version for me. My last "real" tuna was the SBBC045, Blue Tuna. However, I've come back to another street or Urban tuna in 43mm with the automatic 4R35.. I can wear the 47mm ones, and have enjoyed them. But, the 43mm is just a much less bulky package with just about 90% of the full tuna looks and design. I am really currently enjoying the SBDY075 in Safari Green.. which is a near identical colorway to the Green Willard (SBDC111) which I also greatly enjoyed. I feel the Tuna design is perhaps my favorite of the many iconic Seiko dive watch designs. Such a cool look with the semi-asymmetrical metal shroud around the case and just love the way the really short lugs underhang the case which adds to its wearability and comfort. The 47mm version 8:16 already wears smaller than you'd think, thus the 43mm is also smaller than specs would suggest. Honestly, it looks and wears like a 40mm to me which is a pretty ideal size.

I still regret selling mine 😪 but at least I had the pleasure of owning one of the first and original designed Marinemasters. For it's size it wears extremely well and what can you say except beauty is the eye of the beholder and I think it's a beauty. Thanks for sharing bro 🙏🏻👍🏼

Great review of a cool watch! Thanks. I don't have a tuna in my collection yet. Kind of looked at them, just never bought one. Yours is very cool! Jdm with kanji date wheel! I understand about special ones. Recently got a SLA059. Became a daily watch for a couple of weeks. It captured my heart. Had to put it away so I would give love to the other kids😂 . Think it has the same bracelet as your tuna. For me, the bracelet works and fits well. Also have the sla039 on a bright orange dassari rubber strap. Perfect on that on for me. Thanks again for showing that cool tuna!

i have this watch and wear it on a strapcode hexad with the ratchet on the fly adjustable clasp and it wears very well

I love my SBBN-031.

Put it on a Strapcode Angus J, the fit and look is amazing and you can put the MM300 buckle on it if you want. Congrats on your anniversary!!

I have the SBBN031. Not my most expensive watch. Not my best looking watch. Not the lightest watch. But definitely my favorite watch, for some reason.... Really really odd, never thought I'd like it as much as I do.

I like that watch.

You've got to try the Tuna on the Uncle Seiko GL831!

I've an older one from Sekio. From 1980s. It is black and the double body is plastic over metal. But same. Just ordered a homage of it in blue and red.

I love this watch i have the black version

Beautiful. Love to see it on a sharkMesh!

The Icon The Legend The Myth

Peter - Owned the blacked out version of these (SBBN035) as my first Tuna. Went through a Tuna hunt until I finally landed on the LE 1978 Golden Tuna reissue. Tunas are a true piece of horology. Recommendation on the bracelet comfort - One thing to try with the MarineMaster bracelet is to wear it backwards with the clasp folding opposite of the way it's meant to. Kind of like how Nomos designs their bracelets. The foldover clasp has such a long extension and it works better folding on the inside of the wrist.

I am going to buy one asap 😊

I don’t have a Tuna Peter but I am wearing my “Arnie” Prospex Solar.😎👍🏼

Your video makes me think twice about the tuna

I had mine for two years but i'm wearing it mainly on the bracelet. It's going nowhere, it's a keeper. Hopefully for life.

I like that this watch is all business. If you find this watch ugly, go have your vision checked.

Great review - appreciate you posting. I would love to buy one of these new -- I'd even overpay for it. However, I can't find anywhere in the states where I can purchase. I've looked on the Sakura website too and they seem to be always 'out of stock' on any 300m Tuna. I still see on the SeikoUSA website where you can buy some of the high dollar 1000m Tuna's and limited edition but I don't want those (to big). I'm not sure if Seiko is planning on resurrecting the 300m series but I sure hope they do.

I have a Steeldive version , rarely off ❤️

You gave up your Seiko relation for a tuna can... what a betrade! 😋

Love the tuna myself its definitely the one i wear the most 7c46 is unavailable its that good it was keeping up with my sinn UX i have the sbbn015 Nos in my collection one that i wear 😂🔥

I've been trying to introduce more people to the Tuna. Its an unappreciated icon.

hmm, I'll think about getting a tuna. I currently have a willard and it barely gets wrist time

For me this watch was an acquired taste. I bought the same one as this but I did end up flipping it. Great watch.

I have the sun045 50 years anniversary kinetic gmt Tuna diver and after 7 years it still works perfectly and it has saphire glass. But it's not the real tuna and i want one! 😂😂

Peter, your thoughts on the SBBN031 mirror mine. I have the same MM300 dialed variant and wear it mostly on an Isofrane rubber strap. Thanks for the excellent review with great video!

The only Seiko I own: my SBBN043 'Blue Tuna' says hello!

The watch I wear the most. No contest.

Hello and thank you for this video from you, Peter. 👍🤝I share your opinion on this watch, I love mine. Indeed, I have several and the one I prefer is the Sbbn007 Crop circles. This is the watch I wear most often, for all the reasons you give. Do you also update Kanji? 🥰🥰🥰🥰

I don't reject this watch, I admire the design, but I fundamentally disagree in one particular point, you know which. It's a certain feature Seiko themselves know it's not optimal since it cannot be found any more in the higher tier Seiko divewatches of late for a good reason! 😉

Don’t ever sell this Peter, it becomes very difficult to find one in good shape and the asking price is ridiculously expensive! Unless you want the newest variant with the X logo 😂

Seiko dive watches just belong on rubber straps.

Is it as heavy as it looks..?

I think you should be allowed to purchase a Seiko without the strap or the bracelet. Whenever I order a Seiko watch, I order a bracelet, or a strap that I am immediately going to install.

You could buy about a hundred F91s for the same lolly. 😮

Like my British Bulldog… so ugly it is beautiful.

It also begs the question though: why would you ever buy a seiko, unless you work in harsh conditions like oil rigs or war zones?

I think it’s ugly, but I’m also not a diver. If I was, I’d probably think it’s quite useful.

Why "Tuna"

The box is the best place for the bracelet- the clasp is horrible!

I don't know about this