Coming soon $1,687 40mm

Isotope Watches
Hydrium Trippy
Track to get an alert when it's back, or join the brand's waitlist for the next batch.
A Dive watch, in a round stainless steel case, 37.7mm, with a black matte with cream inner chapter ring dial, arrow hands and luminous indices, powered by the M100 COSC.
Right now, the only way to get this reference is via a waitlist. Its price sits close to the median for comparable watches in its segment, neither a premium nor a bargain within that group. The 20 comparable dive watches tracked in this size and price class range from USD 1,014 to USD 1,793. It was released in December 2025.
Diameter
37.7mm
Lug to lug
46.5mm
Between lugs
20mm
Thickness
10.4mm
Movement Type
automatic
Movement Name
M100 COSC
Power reserve
42 hours
Water resistance
20 bar
Crystal Type
sapphire
Crystal Description
Double-domed sapphire crystal with 1.8mm thickness, inner anti-reflection coating
Among tracked dive watches in this class, its scarcity score of 21/100 places it in roughly the top 10%. That tracks closely with what's typical for Serica's catalog.
Its typical sellout pace matches what's usual for this brand. How often this reference comes back in stock lines up with this brand's usual restock rhythm.
Worth tracking
Measured · 7 restocks
Historically restocks roughly every 36 days.
21
May 2026
Scarcity score · today
Scarcity scoreModeled21/10014
Compared with 19 active peers · Dive · 36 - 38mm · $1,000–$2,000
Scarcity rank (in its segment)Top 10%
Sells out inDerived~4 weeks7 weeks
Restocks everyDerived~36 days
Last buyableDerived~1 days ago
Price vs segment17% above segment median
Demand unlocks as Chronoscout gathers more market data on this reference.
Last confirmed:
16 availability changes recorded. In-stock windows ranged from 1 hour to 12 days. Longest sold-out stretch: 16 days. Last restocked on 10/26/26.
Tracked since 12/15/25 (321 days).
Waitlist10/31/26
1 day straight
December 2025
Today
Available · for 5 days10/26/26
Waitlist · for 17 days10/9/26
Available · for 13 hours10/8/26
Sold out · for 16 days9/22/26
Available · for 1 day9/21/26
Sold out · for 17 days9/4/26
Waitlist · for 57 days7/9/26
Available · for 6 hours7/9/26
Waitlist · for 42 days5/28/26
Coming soon · for 15 days5/13/26
Available · for 13 days4/30/26
Coming soon · for 1 hour4/30/26
Available · for 1 hour4/30/26
Coming soon · for 79 days2/10/26
Available · for 6 hours2/10/26
Coming soon · for 6 days2/4/26
Unknown · for 3 hours2/4/26
Coming soon · for 51 days12/15/25
Currently priced at $1,422.00, with 3 price changes recorded over the tracked period. The lowest recorded price was $1,411.00 on 3/7/26; the highest was $1,453.00 on 1/30/26. That's down from the $1,425.00 it was first tracked at.
$1,422.00 USD4/14/26
Unchanged · 7 months
$1,411.00
Mid-range for the tracked period
$1,453.00
$1,419.00 · up $8.004/10/26
$1,411.00 · down $42.003/7/26
$1,453.00 · up $28.001/30/26
$1,425.0012/16/25
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