San Martin Watchdives SN0121T Titanium 39mm

The San Martin Watchdives SN0121T Titanium 39mm is a current-production diver watch with a grade 5 (bracelet grade 2) titanium case. At 100.5 g it sits around the middle for diver watches in the guide, and is priced well under the $1,299 median for the category.

1 official photo · reader photos welcome

Price

$278

Material

Titanium

Grade / type

Grade 5 (bracelet Grade 2)

Weight

100.5 g

Water resistance

300 m

Type

Diver

Case diameter

39.0 mm

Thickness

12.8 mm

Lug-to-lug

47 mm

Origin

China

Movement

Automatic

Caliber

Seiko NH35

Power reserve

~41 h

Complications

Date

Colour

Grey

Surface treatment

None; ceramic bezel

Finish technology

Natural finish

Nickel-free

Unconfirmed (contact-point materials not all confirmed)

Bracelet / strap

Titanium

Crystal

Sapphire, AR coated

Display back

No

Dial

Matte black / matte blue

Dial colours

Black Blue

Lume

Super-LumiNova BGW9

Availability

Offered

Status

Current

Not published

Reference, Hardness, Construction, Caseback, Matching bracelet

High confidence Verified Jun 2026 Source: San Martin (maker) / Watchdives (maker)

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