Available$35040mm

Reactor
Critical Mass
This watch is available for purchase directly from the brand's website.
A Sports watch, in a cushion stainless steel case, 41mm, with a blue carbon-fiber center with matte outer ring dial, sword hands and applied metal indices, powered by the Seiko NH35A.
It is currently available to buy directly from the brand. Within its segment, this reference is priced near the middle of the pack, close to what comparable watches typically cost. This segment covers 69 tracked sports watches in this size and price class, ranging from $315 to $499. It was released in July 2025, one of 9 Undone releases in the past 90 days.
Diameter
41mm
Lug to lug
48mm
Between lugs
20mm
Thickness
15mm
Weight
75g
Movement Type
automatic
Movement Name
Seiko NH35A
Power reserve
41 hours
Water resistance
10 bar
Crystal Type
sapphire
Crystal Description
Double dome sapphire
With a scarcity score of 0/100, this reference ranks in roughly the bottom 10% among tracked sports watches in its class. Its scarcity score has fallen about 5 points over the past 153 days. The high point in that window was a score near 5, reached in April 2026. That's in line with Undone's catalog overall.
On average, roughly 68% of Undone's tracked models are available at any given moment.
No rush
Brand pattern · 142 models
About 68% of this brand's tracked models are currently in stock.
Last confirmed:
Tracked since 4/14/26 (156 days).
Available4/14/26
5 months straight
April 2026
Today
Currently priced at $380.00, with 4 price changes recorded over the tracked period. The lowest recorded price was $365.00 on 4/16/26; the highest was $401.80 on 8/26/26. That's up from the $380.00 it was first tracked at.
$380.00 USD9/13/26
$365.00
Mid-range for the tracked period
$401.80
$401.808/26/26
3 older price changes back to 4/14/26 are available with Collector. Unlock full history
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