The Bronze Field Guide

Tandorio TD232K Solid Bronze Sub Diver

The Tandorio TD232K Solid Bronze Sub Diver is a current-production diver watch with a cusn8 bronze case. It is priced well under the $599 median for the category.

All Tandorio watchesBronze diver watchesCuSn8Skin-safe backDiversUnder $500
Price
$162
Alloy
CuSn8 marine bronze
Water resistance
200 m
Caseback
Steel (solid) or display back option
Type
Diver
Case diameter
40.0 mm
Thickness
13.5 mm
Origin
China
Movement
Automatic (buyer picks NH35 or PT5000)
Caliber
Seiko NH35 / PT5000
Power reserve
41 hours (NH35)
Complications
Time only
Construction
Assembled
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Leather or rubber strap with bronze buckle
Crystal
Domed sapphire
Dial
Black, also blue and green variants
Dial colours
Black Blue Green
Lume
C3 Super-LumiNova
Availability
Offered
Status
Current
Not published
Reference, Lug-to-lug, Weight, Colour, Hardness, Surface treatment, Bronze bracelet, Display back
Medium confidence Verified Jul 2026 Source: Tandorio 40mm CuSn8 bronze SUB case (official) / Tandorio bronze collection (official) Maker ↗
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 Tandorio TD232K Solid Bronze Sub Diver?

The Tandorio TD232K Solid Bronze Sub Diver has a cusn8 bronze case, though its caseback is steel. It is recorded at medium confidence pending a maker-stated alloy.

What size is the Tandorio TD232K Solid Bronze Sub Diver?

It is 40.0 mm in diameter, 13.5 mm thick, and water resistant to 200 m.

How much does the Tandorio TD232K Solid Bronze Sub Diver cost, and is it available?

It is current-production and lists from $162.

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