San Martin SN027-T3 Grade 5 Titanium Diver 43mm
The San Martin SN027-T3 Grade 5 Titanium Diver 43mm is a 43 mm Grade 5 titanium dive watch with a Seagull ST2100 automatic movement. At 86 g on its bracelet, only one of the 47 other titanium dive watches weighed on a bracelet is lighter. On the maker's specification no steel touches the skin, so the guide lists it as nickel-free.
- Type
- Diver
- Case diameter
- 43.0 mm
- Thickness
- 12.5 mm
- Lug-to-lug
- 51 mm
- Origin
- China
- Movement
- Automatic
- Caliber
- Seagull ST2100
- Power reserve
- 60 h
- Complications
- Date
- Colour
- Grey
- Surface treatment
- Brushed
- Finish technology
- Natural finish
- Caseback
- Titanium
- Nickel-free
- Maker states none
- Bracelet / strap
- Titanium bracelet or leather strap
- Matching bracelet
- Optional (or strap)
- Crystal
- Sapphire, AR coated
- Display back
- No
- Dial
- Grey
- Dial colours
- Grey
- Lume
- BGW9 Super-LumiNova
- Availability
- Offered
- Status
- Current (between batches): sold out on sanmartinwatches.com, the maker's store, which still lists it (read 2026-10-22)
- Not published
- Reference, Hardness, Construction
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Frequently asked questions
Is the San Martin SN027-T3 Grade 5 Titanium Diver 43mm nickel-free?
On the maker's published specification, nothing that touches the skin is steel: the case, caseback, crown and strap buckle are all non-steel. The guide records what the maker publishes and has not tested the watch, so if you react to nickel, confirm the contact points with the maker before buying.
What grade of titanium is the San Martin SN027-T3 Grade 5 Titanium Diver 43mm?
Grade 5, as stated by the maker. The caseback is titanium too.
What size is the San Martin SN027-T3 Grade 5 Titanium Diver 43mm?
The case is 43 mm across, 12.5 mm thick and 51 mm from lug to lug. It is water resistant to 200 m.
How much does the San Martin SN027-T3 Grade 5 Titanium Diver 43mm weigh?
About 86 g on its bracelet.
How much does the San Martin SN027-T3 Grade 5 Titanium Diver 43mm cost, and is it available?
It is in production, at a list price of $350.
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