The Bronze Field Guide

Cronos Bronze CuSn8

L6003

The Cronos Bronze CuSn8 is a current-production diver watch with a cusn8 bronze case. It is priced well under the $599 median for the category. The caseback is open, so the movement is visible.

All Cronos watchesBronze diver watchesCuSn8Skin-safe backDiversDisplay backUnder $500
Price
$136
Alloy
CuSn8 marine bronze
Water resistance
150 m
Caseback
Sapphire
Reference
L6003
Type
Diver
Case diameter
42.0 mm
Origin
China
Movement
Automatic
Caliber
PT5000 (or SW200)
Complications
Time only
Construction
Assembled
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Leather / rubber strap with bronze buckle
Crystal
Sapphire
Display back
Yes
Dial
Gradient green, blue, black-brown
Dial colours
Black Blue Green Brown
Lume
Luminous hands and markers
Availability
Offered
Status
Current (between batches, sold out)
Not published
Thickness, Lug-to-lug, Weight, Power reserve, Colour, Hardness, Surface treatment, Bronze bracelet
High confidence Verified Jul 2026 Source: Cronos
Facts are free to cite with a link.
See it in the interactive guide

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Frequently asked questions

What bronze alloy is the Cronos Bronze CuSn8?

The Cronos Bronze CuSn8 has a cusn8 bronze case with a sapphire caseback. This is confirmed against the maker spec.

What size is the Cronos Bronze CuSn8?

It is 42.0 mm in diameter, and water resistant to 150 m.

How much does the Cronos Bronze CuSn8 cost, and is it available?

It is current-production and lists from $136.

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