The Wristwatch Field Guide

San Martin SN078-Q 44mm Bronze Diver

The San Martin SN078-Q 44mm Bronze Diver is a current-production diver watch with a cusn8 marine bronze case. At 135 g it sits around the middle for diver watches in the guide.

All San Martin watchesExotic-material diver watchesBronzeDivers
Material
Bronze
Grade / type
CuSn8 marine bronze
Weight
135 g (head only)
Water resistance
300 m
Type
Diver
Price
– · Approx 350 to 420 depending on movement
Case diameter
44.0 mm
Thickness
15 mm
Lug-to-lug
51 mm
Origin
China
Movement
Automatic
Caliber
PT5000 / SW200 / NH35 (choice)
Complications
Time only
Construction
Assembled
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Holvin leather strap with CuSn8 bronze pin buckle
Crystal
Double domed sapphire with AR coating
Display back
No
Dial
Fire-pattern gradient grey, green or blue
Dial colours
Grey Blue Green
Lume
BGW9 (blue)
Availability
Offered
Status
Current
Not published
Reference, Power reserve, Colour, Hardness, Surface treatment, Caseback, Matching bracelet
Medium confidence Verified Jul 2026 Source: San Martin official store / Z-Watches
Facts are free to cite with a link.
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Alternatives to the San Martin SN078-Q 44mm Bronze Diver

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Frequently asked questions

What is the case material of the San Martin SN078-Q 44mm Bronze Diver?

The San Martin SN078-Q 44mm Bronze Diver has a cusn8 marine bronze case. It is recorded at medium confidence pending a maker-stated material.

What size is the San Martin SN078-Q 44mm Bronze Diver?

It is 44.0 mm in diameter, 15 mm thick, 51 mm lug to lug, and water resistant to 300 m.

How much does the San Martin SN078-Q 44mm Bronze Diver weigh?

About 135 g (head).

How much does the San Martin SN078-Q 44mm Bronze Diver cost, and is it available?

It is current-production; the guide does not list a price for it.

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