The Bronze Field Guide

San Martin CuSn8 Bronze Diver 42mm

SN0043Q

The San Martin CuSn8 Bronze Diver 42mm is a current-production diver watch with a cusn8 bronze case. It measures 42.0 mm across, 11.6 mm thick, 52 mm lug to lug, 100 g, and is water resistant to 200 m. Inside is the PT5000 (or SW200) automatic movement. Complications: Time only. Priced from $242 (approx). Brand origin: China.

Bronze diver watches
Reference
SN0043Q
Type
Diver
Price
$242 · approx
Case diameter
42.0 mm
Thickness
11.6 mm
Lug-to-lug
52 mm
Water resistance
200 m
Weight
100 g
Origin
China
Movement
Automatic
Caliber
PT5000 (or SW200)
Power reserve
–
Complications
Time only
Ceramic
CuSn8 marine bronze
Colour
–
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
Steel
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Leather strap
Ceramic bracelet
–
Crystal
Sapphire with AR coating
Display back
No
Dial
Matte black, matte green, sunburst blue, mother-of-pearl
Lume
BGW9 / C3 Super-LumiNova
Availability
Offered
Status
Current (batch production)
High confidence Verified Jul 2026 Source: San Martin Maker / listing ↗
Facts are free to cite with a link.
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More bronze watches from San Martin

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Frequently asked questions

What bronze alloy is the San Martin CuSn8 Bronze Diver 42mm?

The San Martin CuSn8 Bronze Diver 42mm has a cusn8 bronze case, though its caseback is steel. This is confirmed against the maker spec.

What size is the San Martin CuSn8 Bronze Diver 42mm?

It is 42.0 mm in diameter, 11.6 mm thick, 52 mm lug to lug, and water resistant to 200 m.

How much does the San Martin CuSn8 Bronze Diver 42mm weigh?

About 100 g.

How much does the San Martin CuSn8 Bronze Diver 42mm cost, and is it available?

It is current-production and lists from $242.

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