Chronoscout

Isotope Watches Hydrium NASA

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This watch is available for purchase directly from the brand's website.

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About this Watch

A Dive watch, in a cushion stainless steel case, 40mm, with a white matte dial, baton hands and stick indices, powered by the Landeron / La Joux Perret G101.

This reference is currently in stock and available for direct purchase from the brand. Its price sits close to the median for comparable watches in its segment, neither a premium nor a bargain within that group. The 255 comparable dive watches tracked in this size and price class range from USD 1,008 to USD 1,995. It was released in April 2023.

Diameter

40mm

Lug to lug

48mm

Between lugs

22mm

Thickness

12.9mm

Movement Type

automatic

Movement Name

Landeron / La Joux Perret G101

Power reserve

40 hours

Water resistance

30 bar

Crystal Type

sapphire

Crystal Description

Double-domed sapphire crystal with anti-reflective coating

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Statistics

In stock and widely available. Scarcity score: 0/100. That puts it in roughly the bottom 10% of tracked dive watches in this class. The scarcity score here has moved down around 53 points across the past 354 days. It peaked near a score of 53 in September 2025. That tracks closely with what's typical for Isotope Watches's catalog.

Worth tracking
Limited data
Currently available with no strong urgency signal either way.
0
September 2025
Scarcity score · today
Scarcity score
Modeled
Based on Time unavailable. Reference evidence · 376 days · 2 availability changes · high confidence
0/100
Scarcity rank (in its segment)Upgrade
Price vs segmentUpgrade

Demand, sellout velocity, and restock cadence unlock as Chronoscout gathers more market data on this reference.

Availability

Last confirmed: 9/17/26, 12:05 PM

2 availability changes recorded. Available once, for 136 days, on 9/5/25. Longest sold-out stretch: 12 hours. Last restocked on 1/20/26.

Tracked since 5/7/25 (498 days).

Available2/20/26
7 months straight
March 2026
Today

16 older transitions back to 5/7/25 are available with Collector. Unlock full history

Price

Currently priced at $1,251.00, with 8 price changes recorded over the tracked period. The lowest recorded price was $1,241.00 on 10/12/25; the highest was $1,276.00 on 1/27/26. That's down from the $1,260.00 it was first tracked at.