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San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm
San Martin Automatic Diver - Four Onemm

San Martin Automatic Diver - Four Onemm

Regular price $1,555.72 Sale price $1,318.41
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Color Black Bezel
In stock. Ready to ship.
This discount is based on purchasing the main product
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Estimated between Oct 13, 2026 and Oct 15, 2026 Ships within 1-3 business day after payment clears. | SHOP Track Order | Ourlum Orders | Track Orders

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San Martin Automatic Diver - Four Onemm

You get a professional-grade diver watch that performs reliably and turns heads every time you check your wrist. The matte black dial pairs with a solid stainless steel build to give you serious dive credentials and polished everyday style.

  • Screw-Down Helium Escape Valve: Protects the crystal during deep saturation dives and supports a true 600-meter water resistance depth.
  • On-The-Fly Adjustable Clasp: Lets you tweak the bracelet length instantly to perfect comfort over sleeves or wetsuits without tools.
  • High-Integrity Lume Application: Uses BGW-X1 and C3 materials on hands and markers so you read time clearly in pitch-dark conditions.
  • Scratch-Resistant Sapphire Glass: Features anti-reflective coating and stands up to daily scrapes and adventures in the environment.
  • Precision Automatic Movement: The reliable ST 2130 caliber delivers steady performance with a 40-hour power reserve and smooth sweeping seconds hand.

This San Martin diver is built for the person who refuses to compromise between durability and elegance. The matte black dial sits behind sapphire crystal, framed by a unidirectional ceramic bezel with crisp markings. A date window at three o'clock adds function to the balanced layout. Broad arrow hands sweep with precision, while the screw-down crown bears a raised hexagonal logo that nods to craftsmanship without shouting for attention.

If you want a watch that handles salt spray, gym sessions, and business casual outfits equally well, this piece fits seamlessly into your rotation. The chamfered bracelet contours smoothly to your wrist, eliminating gaps and digging edges even on smaller wrists. You wear it to feel secure and looked-after in every setting.

The 316L stainless steel construction resists corrosion and carries a satisfying heft at roughly 179 grams. Brushed surfaces diffuse fingerprints while polished chamfer lines catch light beautifully. Whether you are monitoring time underwater or making quick notes above deck, you appreciate a tool you can trust.

Key Benefits

  • Instant Fit Customization: Adjust the bracelet size mid-wear to maintain optimal comfort throughout changing temperatures or clothing layers.
  • Vision Assurance: Superluminara treatment ensures maximum glow retention and legibility across all lighting scenarios.
  • Corrosion Shield: Premium stainless steel alloys withstand harsh environments and maintain a pristine appearance over years of frequent wear.
  • Scarfless Time Reading: Applied indices and broad arrow pointers create sharp contrast against the matte background for instantaneous clarity.

Features

  • Ceramic Bezel Insert: Offers scratch-resistant fading resistance with vivid color options including black, blue, and orange finishes.
  • Screw-Down Case Back: Seals the movement compartment with a brushed finish and ensures integrity at significant pressure depths.
  • AR Coated Sapphire: Multi-coating reduces glare reflections so you can check readings clearly under direct sunlight.
  • Broad Arrow Indicators: Classic diver typography provides instant recognition and balances proportions on the compact dial face.
  • Hexagonal Design Accents: The crown and clasp feature custom 3D hexagon logos that reinforce brand identity and design cohesion.

Product Overview

The SN0036-GC is a 41mm sport watch designed for divers, explorers, and collectors seeking exceptional value. It combines vintage-inspired aesthetics with modern horological standards. You receive a complete package that includes exhibition-ready finishing and professional dive functionality.

Specifications

  • Movement: ST 2130 automatic mechanical, 28 jewels, 28,800 vibrations per hour.
  • Case Material: 316L solid stainless steel with brushed and polished finishing.
  • Case Diameter: 41mm with a thickness of 13.4mm and lug-to-lug distance of 48.5mm.
  • Crystal: Sapphire glass with dual-side anti-reflective coating and 9H hardness equivalent.
  • Bezel: Unidirectional ceramic insert with 120 click ratchet mechanism and 12-hour scale.
  • Dial Color: Matte black with applied indices, date window at 3 o'clock, and luminous filling.
  • Lume: BGW-X1 blue light on hands and markers; C3 green light alternative available.
  • Bracelet: 3-link stainless steel configuration with polished chamfer edges and fold-over safety deployment.
  • Clasp: On-the-fly adjustable mechanism featuring 3D hexagonal stamp and double-lock security.
  • Weight: Approximately 179 grams.
  • Water Resistance: Rated to 60 bar (600 meters) with integrated helium escape valve.
  • Crown: Screw-down type with textured grip and engraved hexagonal branding.

What's Included

  • San Martin SN0036-GC Watch: Complete timepiece ready for immediate wear.
  • Instruction Manual: Guide covering winding procedures, maintenance tips, and warranty details.
  • Warranty Card: Documentation confirming 2-year manufacturer coverage for movement and parts.

How to Use

  • Daily Operation: Ensure manual winding for accuracy after storage by turning the crown clockwise fifteen rotations before initial wear.
  • Date Adjustment: Avoid changing the calendar function between 8 p.m. and 4 a.m. to prevent gear train collision.
  • Depth Rating: Verify crown seating fully closed before exposure to submersion or high-pressure environments.
  • Magnetic Exposure: Keep away from speakers or medical devices as magnetic fields may temporarily affect rate accuracy.

Customer Benefits

  • Long-Term Investment Value: High-grade components extend service intervals and preserve resale potential across model generations.
  • Comfortable All-Day Wear: Ergonomic bracelets distribute pressure evenly, reducing fatigue during extended usage periods.
  • Confidence Under Pressure: Proven sealing technology eliminates anxiety about water intrusion during aquatic activities.
  • Versatile Style Transition: Neutral colors allow effortless pairing with formal suits or technical outdoor apparel.

Ideal Uses

Use this watch for commercial diving certification training, weekend sailing trips, scuba excursions, and rigorous trail running. It serves excellently as a pilot chronograph alternative, a gift for milestone birthdays, and a daily driver for professionals requiring rugged reliability.

Who It's For

This timepiece targets mechanical watch enthusiasts, technical divers seeking accessible tier-one features, and individuals upgrading from quartz alternatives. You will appreciate it if you prioritize engineering authenticity, tactile operation, and distinct styling cues over brand exclusivity premiums.

Frequently Asked Questions

What steps should I take if I notice condensation inside the watch glass?

A few droplets indicate a seal breach requiring immediate professional servicing. Small vaporous traces often resolve naturally over several days or by storing the watch upside down on a warm surface, though inspection remains recommended to preserve movement health.

Can I manually set the hands to correct time discrepancies?

Rotation of the crown pulls out to set seconds for precision synchronization. Turn counter-clockwise until the stem extends fully, then advance hands to match GPS reference before pushing back to engage automatic mode securely.

San Martin Automatic Diver - Four Onemm: review the specifications and available configurations.

Product identification: San Martin 41mm Automatic Diver Watch

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  • 5 stars: 25 (86%)
  • 4 stars: 4 (14%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Jacques Hessel

San Martin Upgraded 41mm Waterproof 600m Classic Men Diver Watch Helium Escape Valve ST 2130 Automatic Mechanical Watches SN0036

R
Rufus Ernser

This watch is stunning in person. quality from bezel to case is outstanding. haven’t sized the bracelet yet

L
Lise Bauch

Great quality watch! Despite the price, it's worth it. I still think it's better than an Orient Submariner 39mm. A 41mm watch that fits like a 39.5 or 40mm. Congratulations to SAN MARTIN for the great product. First of many to come.

D
Darell Bailey

Two weeks to get to the uk via holland, watch is flawless! excellent value, great build and finishing would highly recommend.

D
Diann Haag

San Martin Upgraded 41mm Waterproof 600m Classic Men Diver Watch Helium Escape Valve ST 2130 Automatic Mechanical Watches SN0036

A
Audra Kilback

Stunning and sensibly sized po homage. ysual faultless san martin quality. yes, prices are rising on ali but some brands are just worth what is ultimately a much reduced price versus the 'real thing'. 41mm works much better and thickness is pretty good for a600m rated diver. no complaints

D
Dorathy Schmitt

Another beauty from san martin.

L
Latonia Rosenbaum

Ordered on 01.07.2026, delivered on 25.07.2026, already 5 days late. The screwdriver provided by San Martin for the strap does not fit into the screw slots. What do people do when they don't have watchmaker tools? 😏 The watch itself makes a good impression at first glance. Unfortunately, buying through AliExpress is no longer worth it with €56 in customs and import taxes.

N
Nguyet Lowe

It is genuinely impressive what this watch offers for the money. i like the slightly chunkier thickness and weight, and the 600m is cool (althoght overkill for me). what really stands out is the effort on the case polishing and especially the bracelet. the bracelet is brilliant, i have two longines and the bracelet is completely comparable in fit and finish. brilliant timepiece.

A
Aaron Schneider

San martin at their best.



I'll start with the good, case finishing is the best i've seen, not just as this price, but at 10x the cost. Per usual with san martin, lume is bright and packed in for hours of legibility. Bracelet is immaculate with no smudging between finishing.



The qc on my watch is great, bezel aligned, not a single speck of dust under the crystal, signed crown screws all the way it to be aligned at 12, date change dead on at midnight. I commend them for this.



Now for the negatives, only 2. Firstly, the on the fly adjustment clasp is difficult to use, it skips slots, won't always engage the smallest position, and the button is spongy with no feedback, might just be my unit though. Secondly, my bezel action is gritty, not much, but it grinds up and sticks which suggests there is a small particle between the bezel and the case.



Overall, especially with discounts, this watch is 100% worth a pickup if you want a good sized, high beat, dive style watch.

E
Ethan Windler

San Martin Upgraded 41mm Waterproof 600m Classic Men Diver Watch Helium Escape Valve ST 2130 Automatic Mechanical Watches SN0036

F
Frederick Murphy

Fit and finish is exceptional and the polishing of the bracelet makes for a dazzling display of reflections and scattered light. the ar coating could be a bit better. i was surprised to see how well polished the ceramic insert in the bezel was. the case does not feel bulky, although the weight can be felt on the wrist. in terms of the movement, i can see why some people may feel like the weak point is the stem as it feels a bit too tight to wind and as a result, i rather put this one on a watch winder. overall i am very satisfied with my purchase.

V
Velda Schamberger

Wow. what a beautiful watch. quality is equivalent to atleast a 2k watch. loved it.

S
Sirena Williamson

I have bought several san martin watches so far this one is the most satisfying one i’ve on my wrist and the st2130 movement has performed with high accuracy comparable to seiko spb143j, the watch body is clean and beautiful except for the slightly sharp feel to the touch on the middle links of the bracelet.

N
Nicolas Kulas

What amazing, well built, beautiful watch.

R
Richard Wisoky

I am very happy with my purchase! this model has got to be the cleanest execution to date from san martin. the polishing and brushing are perfectly done. highly recommended!

R
Roy Morar

This could have been 5 star ratings the only thing missing is the 7 days movement check list and the gritty crown when screwing down. with these two things fixed this was a contender for 5 star.

I
Isadora Toy

Great watch, certainly good quality for its price. delivery was as expected and item arrived just as expected

T
Tonja Torphy

The watch is very beautiful. It fits perfectly on my small wrist (16.5 cm circumference).

L
Letty Stiedemann

Beautiful watch with quality workmanship.

L
Leif Parisian

Super watch. For a large wrist, additional links are needed. I had to do it myself.
slow down.