Seiko tuna without shroud

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Seiko SBBN007 Tuna Can Shroud Removal (Phillips Screw Version)

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seiko tuna without shroud

All Listings filter applied. Buy It Now. Brand see all Brand. Seiko Unbranded 6. Not Specified 6. Condition see all Condition. New Used 7. Not Specified 1.With its immense water resistance and no-nonsense specifications, it has always been one of the most capable dive watches on the market.

The Seiko Tuna Collector’s Guide

Seiko has updated the quartz Tuna with a pair of new and perhaps perfect models for a professional diver. The fact is that neither a Rolex Submariner nor an Omega Seamaster is a true tool watch.

These are luxury watches capable of undertaking the role of a tool watch. Within the Seiko Tuna collection are, more or less, three families: The m, m and m collections. The m water resistance models are often regarded as not really being true Tunas as they are not saturation divers whilst the other two collections are just different levels of intensity of the same concept. This concept is to be a robust dive watch with a bezel and case protected by a screw-on shroud and with the ability to be used for saturation diving.

Released in the s as a more manageable alternative to the full-fat Tuna dive watch, the m variant has always been powered by an accurate and durable in-house quartz movement which features and end-of-life indicator to ensure diving security. In many ways, this makes real sense for a serious dive watch. The new modern iteration offers a rather stunning play on the concept in brushed and polished stainless steel in the form of the S Looking at this piece, you really get all the dive watch you could want with a full-graduated bezel protected by a steel shroud and a covered luminous pip in order to prevent damage.

Most importantly, the m Seiko Tuna also features a screwed caseback thus making the battery change easier when it comes every 5 years. Tracing its lineage back to the m water resistance quartz Seiko Tuna 7C ofthis watch has an altogether more serious specs sheet. For a start, as is the case for all of the top-end Tunas, the case is titanium with a ceramic shroud to absorb knocks and scratches. This is also a monobloc case which means that the movement is services and loaded through the front, thus removing the need for an opening caseback.

Inside both of these watches is one of the best technical quartz movements on the market: the Seiko 7C This 7-jewel movement with the day, the date, high torque and an end-of-life indicator is not to be confused with affordable quartz movements. This is a movement chosen for reliability, accuracy and durability rather than cost cutting. Importantly, the high torque of this movement was in important feature when selecting the hands of these watches.

For this reason, the large minute hand of the original Tunas albeit in a modern form was reintroduced with the similarly gargantuan portion of luminous coating. The result will, no doubt, be a pair of the most functional, legible and practical dive watches of the year. Learn more about Seiko on our dedicated page or head over to the Seiko website. Save my name, email, and website in this browser for the next time I comment.

Armand Conde-Sequeira-Rosen. See Also Unscripted Podcast No. Why I bought a Swatch, and why I would recommend one to any watch enthusiast. Leave a Reply Cancel reply Your email address will not be published. Unscripted Podcast No.The Seiko Tuna range boasts of many firsts. The range was the first to feature a ceramic-coated titanium shroud, a titanium monocoque case, an L-shaped gasket, and a vented rubber strap.

Built-inthe first Seiko Tuna watch was created in response to a letter the company received in These pre-Seiko Tuna models were not robust to impact and could not withstand exposure to deep underwater pressure for prolonged periods. Divers watches must withstand uniquely challenging conditions. When divers go through the required decompression, helium is released through special escape valves in divers watcheswithout which the watch crystal would crack.

Tokunaga and his team began development in and released the first Seiko Tuna watch seven years and more than 20 patents later. The first Seiko Tuna watch was run by the mechanical B movement. Outside of Japan, it was also given the model numberbut we will only refer to in this article. It was the first to feature a titanium monocoque case and a titanium shroud coated with ceramic.

It was also the first to use an L-shaped gasket and a vented rubber strap.

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In addition to the regular models in the Seiko Tuna range, Seiko has released a number of limited editions. The Seiko Tuna range was designed by Seiko engineer Ikuo Tokunaga,[1] who is also noted for working on other special timepieces such as pilot, adventure, and railway watches. Seiko achieved its goal by using a special L-shaped gasket and a monocoque case.

Titanium not only made the Tuna watches highly resistant to corrosion but also lighter. Seiko created a total of 11 variations or executions under the Seiko Tuna series. The Grandfather Tuna introduced the titanium case and the ceramic-coated shroud, two design elements that continued throughout most of the Seiko Tuna watch range.

Hands-on with the Seiko Fieldmaster a.k.a. Field Tuna

However, for the Golden Tunaboth were made of stainless steel, while for the Baby Tuna 5M23, both were made of plastic. The Golden Tunas A and 7C46 that followed had their own signature style as well, thanks to their gold-tinted shrouds.

Meanwhile, the Golden Tunawhich is bigger than the 5M23 watches by 4 mm, deviated from most of the Golden Tuna watches due to its unique lugs and curved, domed hardlex crystal.

All of these were created in-house. The B movement, which was derived from the well-respected 61xx movement that ran the Grand Seiko, was confined to professional Seiko dive watches and was never used in any other Seiko model. The B movement contains the most functional jewels in the entire range at 25 jewels. On the other hand, the A movement has the fewest at five jewels, while the 7C46 and 5M23A follow closely at seven jewels and six jewels, respectively.

Deep Dive: The Evolution of Seiko’s Shrouded Divers

All watches in the range hack and can be hand-wound. Most of them run at 36, bph. The A movement is quartz rather than mechanical, making the watch a little more robust than the mechanical model it replaced.

The 5M23 is a reliable and accurate kinetic quartz movement. The Seiko Tuna range is characterized by black dials and LumiBrite lume. Even the Golden Tunas, A and 7C46, have some differences. While the A features a two-pole step motor driving system, the 7C46 has a step motor driving system. What sets apart this movement from the rest of the Seiko Tuna watches, however, is its automatic generating system and power reserve indicator.

The Seiko Tuna watches have a uniform tuna can-like design from which they derive their nickname. Another characteristic that sets the Seiko Tuna apart is its shroud. The bezel works by showing divers how many minutes they have spent underwater.

The Seiko Tuna watches were released in limited quantities and with expensive price tags. Watch collectors seeking the ultimate Seiko Tuna timepiece should look no further than the first variant in the series, the Grandfather Tuna Aside from the case and functionality, buyers of timepieces are aesthetically attracted by the overall color scheme of a watch. Such is the case for Seiko when they decided to release their popular baby tuna model in black, white and yellow and Seikoholics have coined it the "Yellow Fin" baby tuna.

Lets take a look into the "Yellow Fin" and find out if it will be one of Seiko's modern day classics. Look and Feel. One of Seiko's classic case designs has been the "Tuna". From our research, it stemmed because the watch case resembled a tuna can because of its massive circular shroud. Because of its unique looks and appeal, Seiko released into somewhat a smaller version of the original Tuna and dressed it up with colors that would suit a modern-day diver. The original tuna's had huge case shrouds that would protect the watch head for saturation diving.

With the shroud, most tuna's case sizes would range from mm. Seiko released the Yellow Fin baby tuna into a smaller and more manageable 45mm case with shroud.

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The stainless steel shroud, paired with a black bezel with white and yellow markings gave the SRPK1 its unique character. The addition of the yellow-lined minute hand closed the deal for it to become an instant looker for a diver. Lug width is at 22mm which gives its owners multiple strap options. It comes out of the box with a trademark black curved-end rubber strap which is quite comfortable on the wrist.

We've met a few Seiko lovers who slapped on a stainless steel bracelet Google: Super En gineer bracelet that made the whole watch facade jump at you more. Given the price point for the Yellow Fin Baby Tuna, we've already expected it to have the ever-so-dependable 4R36 Automatic movement.

Marine Master Pro. 1000M Emperor Tuna Ref. SBDX014

Wish list? We would have wanted to see a 6R series movement housed in it though. If you can get them at the lower part of the price range mentioned above, then that would be one heck of a deal!

The Seiko Yellow Fin Baby Tuna is an attractive watch with its clean yet striking color combinations.

seiko tuna without shroud

However, not everyone would appreciate the shroud and case size. WIS watch idiot savant's would have a hard time appreciating it especially if the put side to side with the original Seiko Tuna's. Not afraid to wear larger watches. Loves sporty and casual wear especially the color yellow. Appreciates the Seiko Tuna and Saturation diving scene.

Watch Daddy Rating. Attractive color scheme. Stainless steel shroud shows its diving heritage. Affordable depending on your continent. Wears rather large and sits high on the wrists. Won't fit under a dress shirt.

Worth Considering. Watch Daddy Picks. Stainless Steel Shroud. Seiko automatic movement Caliber 4R LumiBrite hands and markers. Water resistant to meters feet.Recently, at a casual gathering of watch enthusiasts, most of who prefer refined automatics under or around 40 mm, there was an undeniable attraction to two Seiko SBBNs 48mm cases and quartz powered that had made their way into a pile of Sinns, Damaskos, Squales and vintage Hamiltons.

The seemingly garish Seiko shrouded divers has caught the attention of most of the table sharing Neapolitan pizza pies and watch talk.

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The shroud is a shield for the case that is secured with three screws, giving the suit-of-armor appearance that projects an all-business attitude that fans love. Two cut outs give the wearer access to turn the timing bezel. Seiko was at the time seeking to create a watch that could hold up well for professional saturation divers and came up with the first Tuna.

The first quartz Tuna was thealso known as the Golden Tuna for its gold colored accents. The has a steel insert and a bead blasted shroud and comes with a rubber strap, which I also find to be comfortable. Share this story:. Watch out for Tuna fever. But it still maintains traits that show its relationship with the rest of the Seiko diver watch heritage.

It wears a lot smaller than its specs because of the short lug design. The 7C46 high-torque quartz movement is designed specifically for this model.

It can be serviced and uses a 7-jeweled gear train and dual-rate trimmers for maximum efficiency. In my experience, Tunas are very accurate and have a battery life lasting over five years. The build quality rivals far more expensive watches. The printing on the dial, unique brushed hands, the smooth bezel action and sublime crown feel make it a joy to look at and operate. They wear well with every type of strap, from Isofranes to OEM bracelets to mesh to nylon to canvas to leather.

The drilled-through lug holes make swaps easy too. Mine, for the most part, live on really broken-in Maratac Zulu straps. The Kanji days of the week are just plain cool. The lume is killer. Here are a few notes to those considering a Tuna: The shroud is removable pretty easily. Just make sure you use nicer hex wrenches. You can send it off to have it DLC or cerakote coated for a stealthy look.

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Aftermarket sapphire crystals are available from DagazWatch. Check out our Modding for more on that. It features a monocoque case and flat sapphire crystal and the case has integrated lugs into the case. The Spring Dive version is what some would consider the ultimate Tuna. The SBDB uses a 5R65 Spring Drive movement, which in the most simplified sense is an electronic assisted automatic movement to provide very high accuracy. So what are you waiting for?

Tuna fever is spreading.But how does it fare on the land? As such, the Fieldmaster was born. The first noticeable difference is the compass bezel. The hands of the Field Tuna may be similar to the Marinemasters of Seiko, but the indices are far from similar. Moreover, there are no labels of any kind in the bottom center of the dial. The case back features some handy descriptions and codes that are internationally recognized distress signals which is also known as Ground-to-Air visual signal code that can be used to convey messages to air crafts in search for rescue when there is no other means to communicate.

For those interested in knowing more what these symbols are, you can check out the Wilderness Survival Guide. The case itself is already huge, measuring at a diameter of 48mm All these specifications are basically made to make it so that this is a piece to be worn on the field. It basically deviates from the standard strap choices of either stainless steel bracelet or the iconic rubber straps from the PROSPEX divers.

seiko tuna without shroud

Even with the similarities with the Marinemasters, the Fieldmaster deserves a spotlight of its own. With current pricing of approximately 94, Yen Euros including taxes, the piece is considered to be a watch with good value.

An affordable luxury tool-watch as some would say, and a very good one at that. Another gem from the Japanese-only made pieces that collectors around the world would want to grab a hold of. This article is written by Evan Yeung, contributing writer for Monochrome Watches. The Seiko Tuna looks good on almost any type of watch band. Interesting review! Seiko Reviews. Leave a Reply Cancel reply. By Brice Goulard. Introducing Code Stay up to date with the latest post and updates Subscribe to our newsletter.

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