Watch
by Isotope
Isotope Old Radium
Old · Old Radium
- Case
- 40 mm
- Thickness
- 10.1 mm
- Crystal
- Sapphire
- Market price
- $1,370
Updated 11 November 2026
About this watch
The Isotope Old Radium is a 40 mm watch from the Old collection. Its bronze case is 10.1 mm thick and 47 mm from lug to lug. It is water resistant to 100 m. The crystal is sapphire.
The manufacturer’s list price is US$1,370. It comes in 3 versions, with black and white dials.
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