The Wristwatch Field Guide

Tandorio CuSn8 Solid Bronze Turtle

TD239

The Tandorio CuSn8 Solid Bronze Turtle is a current-production diver watch with a cusn8 marine bronze case. It is priced well under the $1,195 median for the category.

All Tandorio watchesExotic-material diver watchesBronzeDiversUnder $5,000
Price
$162
Material
Bronze
Grade / type
CuSn8 marine bronze
Water resistance
200 m
Reference
TD239
Type
Diver
Case diameter
44.0 mm
Thickness
14 mm
Origin
China
Movement
Automatic
Caliber
PT5000 (or Seiko NH35A)
Complications
Date
Construction
Assembled
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Brown leather strap
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Lume
C3 lume hands and markers
Availability
Offered
Status
Current (between batches, sold out)
Not published
Lug-to-lug, Weight, Power reserve, Colour, Hardness, Surface treatment, Caseback, Matching bracelet
High confidence Verified Jul 2026 Source: Tandorio
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the Tandorio CuSn8 Solid Bronze Turtle?

The Tandorio CuSn8 Solid Bronze Turtle has a cusn8 marine bronze case. This is confirmed against the maker spec.

What size is the Tandorio CuSn8 Solid Bronze Turtle?

It is 44.0 mm in diameter, 14 mm thick, and water resistant to 200 m.

How much does the Tandorio CuSn8 Solid Bronze Turtle cost, and is it available?

It is current-production and lists from $162.

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