Available$1,36540mm

Isotope Watches
Old Radium Polar Enamel


This watch is available for purchase directly from the brand's website.
A Field watch, in a round stainless steel case, 40mm, with a white lacquer dial, sword hands and applied metal indices, powered by the CB101 based on ETA 2824.
It is currently available to buy directly from the brand. Priced 27% below the median for comparable watches in its segment, this reference sits toward the lower end of that price band. This segment covers 50 tracked field watches in this size and price class, ranging from USD 1,088 to USD 2,000.
Diameter
40mm
Between lugs
20mm
Thickness
12mm
Movement Type
mechanical
Movement Name
CB101 based on ETA 2824
Water resistance
20 bar
Crystal Type
sapphire
Crystal Description
Sapphire crystal with anti-reflective coating
With a scarcity score of 0/100, this reference ranks in roughly the bottom 10% among tracked field watches in its class. Its scarcity score has fallen about 11 points over the past 167 days. The high point in that window was a score near 11, reached in April 2026. That's in line with Charles Berret's catalog overall.
On average, roughly 71% of Charles Berret's tracked models are available at any given moment.
No rush
Brand pattern · 14 models
About 71% of this brand's tracked models are currently in stock.
Last confirmed:
Tracked since 3/20/26 (181 days).
Available3/20/26
6 months straight
March 2026
Today
Currently priced at $1,088.00, with 4 price changes recorded over the tracked period. The lowest recorded price was $888.00 on 4/20/26; the highest was $1,111.44 on 8/31/26. That's up from the $888.00 it was first tracked at.
$1,088.00 USD9/13/26
$888.00
Near its highest recorded price
$1,111.44
$1,111.44 · up $213.888/31/26
$897.56 · down $9.898/21/26
$907.458/11/26
1 older price change back to 4/19/26 is available with Collector. Unlock full history
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