San Martin SN027-T3 Grade 5 Titanium Diver 43mm
The San Martin SN027-T3 Grade 5 Titanium Diver 43mm is a current-production diver watch with a grade 5 titanium case, finished with brushed. At 86 g it sits around the middle for diver watches in the guide, and is priced well under the $1,299 median for the category. The maker states no nickel-bearing steel at any skin-contact point, across the case, caseback and bracelet.


- 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
- 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, no nickel-bearing steel touches the skin: a grade 5 titanium case with a titanium caseback, plus a non-steel crown and strap. That is what the guide records rather than a test of the watch, so confirm the contact points with the maker before buying if you react to nickel.
What is the case material of the San Martin SN027-T3 Grade 5 Titanium Diver 43mm?
The San Martin SN027-T3 Grade 5 Titanium Diver 43mm has a grade 5 titanium case with a titanium caseback. This is confirmed against the maker spec.
What size is the San Martin SN027-T3 Grade 5 Titanium Diver 43mm?
It is 43.0 mm in diameter, 12.5 mm thick, 51 mm lug to lug, and water resistant to 200 m.
How much does the San Martin SN027-T3 Grade 5 Titanium Diver 43mm weigh?
About 86 g (w/ bracelet).
How much does the San Martin SN027-T3 Grade 5 Titanium Diver 43mm cost, and is it available?
It is current-production and lists from $350.
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