San Martin Diver Watch Automatic Watch Helium Valve
This San Martin SN0036 men’s Diver Watch features a robust 41mm design with an ST2130 Automatic Watch movement for reliable mechanical performance. The integrated Helium Valve supports its professional diving design, while the listed 600M water resistance makes it suitable for diving, water sports, travel, and everyday wear.
San Martin SN0036-GC 41mm Automatic Diver Watch – ST2130 Sapphire Mechanical Wristwatch
Built around classic professional dive-watch styling, the San Martin SN0036-GC combines an automatic ST2130 mechanical movement, 41 mm stainless steel case, sapphire crystal with AR coating, screw-down construction, strong luminous visibility and a solid stainless steel bracelet. Its substantial specifications and functional diving-oriented design make it a distinctive choice for watch enthusiasts who appreciate mechanical engineering and robust sports-watch styling.
Purpose-Built Automatic Diver Styling
The San Martin SN0036-GC is designed around the functional proportions and bold readability associated with traditional mechanical diver watches. A 41 mm round stainless steel case is paired with a rotating-style dive bezel, matte black dial, prominent luminous markers and a three-link stainless steel bracelet.
The watch uses the ST2130 automatic self-winding movement, allowing it to operate mechanically without requiring a conventional quartz battery. Its screw-down crown, screw-down case back and helium escape valve further reinforce its dive-oriented construction.
Key Features
ST2130 Automatic Movement
The watch is powered by an ST2130 automatic self-winding mechanical movement for traditional mechanical watch operation.
41 mm Stainless Steel Case
A 41 mm round case creates a balanced yet substantial sports-watch presence on the wrist.
Sapphire Crystal
Sapphire crystal with anti-reflective coating provides a clear viewing surface and enhanced scratch resistance for regular wear.
Helium Escape Valve
The case incorporates a helium escape valve as part of its professional diving-oriented construction.
Strong Luminous Display
BGW-X1 blue and C3 green luminous material is specified for the hands and markers for improved visibility in reduced-light conditions.
Screw-Down Crown
The screw-down crown includes San Martin’s 3D hexagon logo and contributes to the watch’s secure case construction.
Classic Diver Design with Modern Finishing
The SN0036-GC uses a matte black dial with large luminous hour markers, broad hands and a practical date window. The high-contrast layout is designed for fast, straightforward time reading.
Brushed stainless steel surfaces give the watch a purposeful sports-watch character, while polished chamfered edges provide additional visual refinement. The solid three-link bracelet follows the same combination of strength, comfort and clean mechanical styling.
Mechanical & Case Engineering
Automatic Self-Winding
The ST2130 movement uses automatic self-winding operation, allowing normal wrist movement to contribute to winding the mechanical movement.
Screw-Down Case Back
A brushed screw-down case back contributes to the watch’s secure, diving-oriented case construction.
316L Three-Link Bracelet
The product specifications identify a solid 316L stainless steel three-link bracelet with polished chamfered detailing.
On-the-Fly Adjustable Clasp
The OTF adjustable clasp is designed to allow convenient bracelet fit adjustment without fully removing the watch.
Product Specifications
| Brand | San Martin |
|---|---|
| Model Number | SN0036-GC |
| Item Type | Mechanical Wristwatch |
| Sport Type | Diving |
| Movement | ST2130 Automatic Self-Wind |
| Movement Origin | China |
| Case Shape | Round |
| Case Material | Stainless Steel |
| Case Diameter | 41 mm |
| Case Thickness | 13.4 mm |
| Lug-to-Lug | 48.5 mm |
| Dial Color | Matte Black |
| Display Type | Numberless |
| Crystal | Sapphire Crystal with AR Coating |
| Luminous Material | BGW-X1 Blue Light / C3 Green Light |
| Luminous Areas | Hands and Markers |
| Water Resistance Listing | 50 Bar |
| Additional Water-Resistance Label | Waterproof 600 m |
| Helium Escape Valve | Yes |
| Screw-Down Crown | Yes, with 3D Hexagon Logo |
| Case Back | Screw-Down, Brushed Finish |
| Band Material | Stainless Steel |
| Bracelet | 316L Solid Stainless Steel Three-Link Bracelet |
| Band Width | Approximately 20–24 mm |
| Band Length | Approximately 8.07 inches |
| Clasp | On-the-Fly Adjustable Folding Clasp with Safety |
| Features | Luminous, Shock Resistant, Diver |
| Weight | Approximately 179 g |
| Style | Sport / Diver |
| Box Material | Leatherette |
| High-Concern Chemical | None specified |
| Warranty | 2 Years |
| Origin | Mainland China |
Watch the San Martin SN0036 Product Video
See the case finishing, bracelet, bezel, dial details and overall wristwatch design more closely in the product video below.
Designed for Sport, Travel & Everyday Watch Enthusiasts
The SN0036-GC combines functional diver-watch characteristics with finishing suitable for a wide range of everyday settings.
- Diver-Watch Enthusiasts: Mechanical construction, strong lume, screw-down components and a helium escape valve support its traditional diver-watch character.
- Everyday Wear: Stainless steel construction and sapphire crystal provide a robust combination for frequent use.
- Travel: The automatic movement and adjustable bracelet design make it a practical mechanical option for regular travel.
- Outdoor Style: High-contrast markers and substantial case proportions complement active and outdoor wardrobes.
- Watch Collections: The ST2130 movement and San Martin diver styling make it an interesting addition to a mechanical-watch collection.
- Gift Option: Suitable for birthdays, holidays, anniversaries and milestone occasions for mechanical-watch enthusiasts.
Automatic Watch Care
As an automatic mechanical watch, the SN0036-GC uses wrist movement to help wind the movement during normal wear. If the watch has stopped after being unused, it may require initial winding and time setting before wear.
Keep the crown fully secured before exposure to water. Rinse and dry the watch appropriately after exposure to salt water, and avoid operating the crown or other case controls while the watch is submerged unless the manufacturer specifically states that the function is designed for underwater operation.
Frequently Asked Questions
What movement is used in the San Martin SN0036-GC?
The supplied specifications identify the movement as the ST2130 automatic self-winding mechanical movement.
What is the case diameter?
The watch has a listed case diameter of 41 mm.
How thick is the watch?
The listed case thickness is approximately 13.4 mm.
What is the lug-to-lug measurement?
The supplied specification lists a lug-to-lug measurement of approximately 48.5 mm.
Does the watch use sapphire crystal?
Yes. The listing specifies sapphire crystal with an anti-reflective coating.
What type of lume does the watch use?
BGW-X1 blue and C3 green luminous material is specified for the hands and markers.
Does the watch have a helium escape valve?
Yes. A helium escape valve is included in the supplied product specifications.
What material is the bracelet?
The bracelet is specified as a solid 316L stainless steel three-link bracelet.
Does the clasp allow quick adjustment?
Yes. The product specifications identify an On-the-Fly adjustable clasp.
How much does the watch weigh?
The listed weight is approximately 179 g.
What warranty is listed for the watch?
The supplied product information lists a 2-year warranty.
Is the watch rated to 600 meters?
The product information includes both a “600 m waterproof” statement and a separate 50 Bar water-resistance specification. Because these figures are not presented consistently as an exact equivalent, the manufacturer’s current tested depth rating should be confirmed before relying on a specific maximum diving depth.
Mechanical Diver Engineering with Refined San Martin Styling
The San Martin SN0036-GC brings together a 41 mm stainless steel case, ST2130 automatic movement, sapphire crystal with AR coating, strong BGW-X1/C3 luminous material, screw-down construction, helium escape valve and solid 316L stainless steel bracelet. With its matte black dial, classic diver layout and substantial mechanical specifications, it offers a distinctive combination of functional sports-watch design and traditional automatic watchmaking.

