Isotope Old Radium Bronze Tobacco

The Isotope Old Radium Bronze Tobacco was a 40 mm bronze field watch with an automatic movement. It is no longer made, so this page is a reference for buying one used.

6 official photos · reader photos welcome

Material

Bronze

Grade / type

CuSn8 bronze

Water resistance

100 m

Type

Field

Price

– · Maker page shows OutOfStock at $0.00; a sold-through 100-piece limited edition with no last recorded price.

Case diameter

40.0 mm

Thickness

10.1 mm

Lug-to-lug

47 mm

Origin

United Kingdom

Movement

Automatic, self-winding

Caliber

Swiss Landeron

Power reserve

40 hours

Complications

Time only

Construction

Assembled

Finish technology

Natural finish

Caseback

Titanium

Nickel-free

Unconfirmed (bracelet, strap, or clasp hardware not confirmed)

Bracelet / strap

20mm quick-release Italian calfskin strap (or a bespoke Marine Nationale strap, handmade in Barcelona by Didymostraps) with a brushed bronze buckle

Crystal

Anti-reflective sapphire

Display back

Yes

Dial

No-date textured dial with Old Radium luminescent numerals and indexes

Lume

Old Radium luminescent coating

Availability

No longer offered

Status

Discontinued; limited edition of 100, sold out

Not published

Reference, Weight, Colour, Hardness, Surface treatment, Matching bracelet

High confidence Verified Sep 2026 Source: Isotope (maker product page)

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