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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →The Bohen Grande Marine is an automatic dive watch that Bohen rates to 600 m (60 ATM) in a case 12.8 mm thick. That combination is what makes it interesting: most watches with this depth rating are noticeably bulkier. Every figure below comes from Bohen’s own product pages. The pages I drew on cite no independent laboratory test of the depth rating, so “professional-grade” is the brand’s positioning, not a certification. The model was a 500-piece run, and Bohen’s current overview describes it as sold out.
Key specifications at a glance
| Item | Bohen’s published figure |
|---|---|
| Water resistance | 600 m / 2,000 ft (60 ATM), with an automatic helium escape valve |
| Thickness | 12.8 mm including the sapphire crystal |
| Bezel diameter | 41 mm |
| Case length | 48 mm |
| Case | 316L stainless steel, grade 5 titanium screwed case back |
| Crystal | Sapphire, described as double coated on the inside |
| Bezel | Unidirectional ceramic, 60 clicks |
| Movement | Swiss automatic designed by Soprod; hours, minutes, seconds; no date |
| Power reserve / frequency | 42 hours / 28,800 vibrations per hour (4 Hz) |
| Jewels | 25 |
| Stated rate | ±4 seconds per day in five positions (Bohen’s regulation claim) |
| Strap width | 22 mm at the head, 16 mm at the buckle |
| Warranty | Three years |
| Listed price | €2,790 including VAT on the English product page, which marks it unavailable |
How deep can it dive, and who says so?
Bohen states 600 m / 60 ATM. I found no independent laboratory, regulator or standards-body result for this watch, so treat the rating as the manufacturer’s claim. That is normal for small brands, but it is not the same as a third-party certification.
How thick is it, and why does that matter?
At 12.8 mm including the crystal, the watch is slim for its rating. Bohen’s overview credits three choices: a miniaturized helium escape valve, a grade 5 titanium screwed case back and a 3.5 mm sapphire crystal. Any “one of the thinnest” or “the thinnest” wording is Bohen’s positioning, not the result of an independent comparison.
Thickness is only part of fit. The 48 mm length and 41 mm bezel decide how it sits on a smaller or larger wrist, so check those two numbers against your own wrist rather than relying on the thickness alone.
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#1 Best Overall
- AUTOMATIC MOVEMENT: Powered by the ST 2130 automatic mechanical movement, this 41mm diver keeps accurate time without the need for a battery.
- EXCEPTIONAL WATER RESISTANCE: Rated at 60ATM (600 meters / 2,000 feet), this watch is built to handle serious diving and water activities with confidence.
- DURABLE CONSTRUCTION: The case and solid bracelet are crafted from 316L stainless steel, measuring 13.4mm thick with a 48.5mm lug-to-lug span for a robust, comfortable fit.
- LUMINOUS VISIBILITY: Features BGW-X1 blue light and C3 green light luminous material on the hands and indices, ensuring excellent readability in low-light and underwater conditions.
- KEY SPECIFICATIONS: Case diameter 41mm, band length 7.3 inches, band width 20mm/18mm, unidirectional rotating bezel, and date display at 3 o'clock position.
What movement does it use?
Bohen describes a Swiss automatic movement designed by Soprod with a 42-hour reserve and a 4 Hz beat. The official listing does not give a caliber name, so don’t assume a specific Soprod model. The movement shows no date, which keeps the dial simpler.
What comes in the box?
- A steel bracelet with tool-free quick release, a micro-adjustment clasp and a diving extension.
- Two silicone straps, one black and one brown. So yes, it ships with rubber-style straps as well as the bracelet.
- A choice of right- or left-side crown, which is useful if you wear the watch on your right wrist.
Is it still available?
Probably not new from Bohen. In 2026, the English product listing showed the watch as unavailable at €2,790, and the Grande Marine overview described the 500-example run as sold out. Prices and stock can change, so confirm on Bohen’s site. If you find one elsewhere, expect secondhand terms. Also check whether the three-year warranty applies to a later owner, since the listing doesn’t say.
Rank #2
- Brand New Omega Seamaster Planet Ocean Men's Watch
- Self Winding Automatic Master Chronometer Movement
- Omega Caliber 8800
Launch context
Bohen announced the model on March 7, 2024, in a post signed by founder Blaise-Dominique. It raised the planned run from 300 to 500 pieces and presented the watch as an elegant design with contained dimensions. The brand also said it chose not to work with retailers, with the line “Let’s stay small, but think big…”. That describes the launch, not how the watch is sold today.
How to judge it against other dive watches
- Thickness against depth rating: compare 12.8 mm and 600 m with rival watches’ own published figures, remembering that both sides are claims.
- Footprint: use length and bezel size alongside thickness.
- Movement disclosure: Bohen names a designer but not a caliber, so a like-for-like movement comparison is limited.
- Package: bracelet, diving extension and two straps are included, which can offset a higher price.
- Stock and support: a sold-out limited run means you will probably be buying on the secondary market.
The Bottom Line
The Grande Marine is a slim 600 m dive watch on paper, with a ceramic bezel, a Soprod-designed automatic and a generous strap package. Its depth rating and “thin” claims rest on Bohen’s word alone. As a sold-out limited run, it is mainly a secondary-market proposition now.
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Best Value
- PROFESSIONAL DIVE PERFORMANCE – Water-resistant up to 600 m / 2,000 ft for demanding underwater use.
- POWERMATIC 80 MOVEMENT – Swiss automatic movement with up to 80 hours of power reserve.
- CERAMIC ROTATING BEZEL – Features a durable ceramic bezel ring with an anti-clockwise rotating bezel.
- SAPPHIRE CRYSTAL – Domed scratch-resistant sapphire crystal with antireflective coating for enhanced clarity.
- BUILT FOR ADVENTURE – Stainless steel case, screw-down crown, helium valve, and durable black rubber strap.
Rank #4
- Case Size: 44.00 mm, Band Width: 22 mm, Case Thickness: 15.29 mm
- Swiss Automatic Movement, HMSD (Hour, Minute, Second, Date), 316 stainless steel case, power reserve up to 80 hours
- Water-resistant up to a pressure of 60 bar (600 m / 2000 ft)
- see-through caseback, caseback with sapphire crystal, screw-down crown and caseback, ceramic bezel ring, helium valve, anti-clockwise rotating bezel
- Domed scratch-resistant sapphire crystal with antireflective coating, Super-LumiNova dial
Rank #3
- ST2130 Automatic Movement: This men's dive watch is equipped with the ST2130 self-winding mechanical movement—a premium 28,800 vph (4Hz) caliber built on the classic ETA 2824-2 design. Engineered for everyday durability, it features shock resistance and a hacking function for precise second-by-second time setting. The movement also supports bidirectional automatic winding, is constructed with 26 jewels, and delivers a power reserve of up to 42 hours
- Fine Workmanship: Our automatic watch case combines marine-grade 316L stainless steel (superior to standard 304 steel) with a domed sapphire crystal bubble glass and cyclops date window (2.5 times amplification effect), featuring inner AR blue coating – creating an indestructible timepiece that maintains crystal clarity in any environment. Designed for professional divers and watch enthusiasts who refuse to compromise
- 20Bar Water Resistant: Our SN0017G-F professional mechanical dive watch delivers true 20Bar/200-meter water resistance, built to meet ISO 6425 dive watch standards. The screw-down crown is a riple-sealed system that prevents water intrusion. And with the double gasket system - Reinforced at crown, case back, and crystal. Suitable for professional marine activities, swimming, water sports, and daily wearing
- BGW9 Blue Light: Its hands and hour markers feature Super Luminous BGW9 blue light, which can last for at least 5 hours in the dark and can absorb and store light energy in a bright environment quickly. Luminous wristwatches allow you to grasp the time without fear of the dark
- Ideal Present for Men: Its precise timekeeping and impressive features, make it a popular choice among professional divers and outdoor enthusiasts. Whether you're exploring the depths of the ocean or simply going about your day-to-day activities, this watch will never let you down, It is a perfect present for your father, husband, or boyfriend
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
