The Titanium Field GuidePicks of the month

Tandorio TD232K Solid Bronze Sub Diver

The Tandorio TD232K Solid Bronze Sub Diver is a 40 mm bronze dive watch with a Seiko NH35 or PT5000 automatic movement. At a list price of $162, only three of the 90 other bronze dive watches in production, leaving out the fashion brands cost less.

All Tandorio watchesDiver watchesUnder $500Microbrand
Price
$162
Material
Bronze
Grade / type
CuSn8 marine bronze
Water resistance
200 m
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
Finish technology
Natural finish
Caseback
Steel (solid) or display back option
Nickel-free
Unconfirmed (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, Matching 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.
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Frequently asked questions

What is the case of the Tandorio TD232K Solid Bronze Sub Diver made of?

The case is cusn8 marine bronze. The guide has not yet confirmed it on the maker's own page. The caseback is steel, not titanium.

What size is the Tandorio TD232K Solid Bronze Sub Diver?

The case is 40 mm across and 13.5 mm thick. It is water resistant to 200 m.

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

It is in production, at a list price of $162.

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