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Isotope Watches Hydrium Coconut Island

Coming soon

The brand lists this reference as coming soon. Track to get an alert when availability is confirmed.

About this Watch

A Dive watch, in a round stainless steel case, 40mm, with a silver brushed sunburst dial, sword hands and arabic numerals indices, powered by the La Joux Perret G101.

This reference is coming soon, though the brand hasn't confirmed an exact date yet. Priced 31% above the median for comparable watches in its segment, this reference sits toward the upper end of that price band. Among the 256 tracked dive watches in this size and price class, prices span from USD 1,008 to USD 1,995.

Diameter

40mm

Lug to lug

48mm

Between lugs

22mm

Thickness

12.9mm

Movement Type

automatic

Movement Name

La Joux Perret G101

Power reserve

68 hours

Water resistance

30 bar

Crystal Type

sapphire

Crystal Description

Double-domed sapphire with anti-reflective coating

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Statistics

Release incoming. Scarcity score: 77/100, with no restock history. That score places it in roughly the top 10% among tracked dive watches in its class. Over the past 179 days, this reference's scarcity score has risen by roughly 62 points. Its scarcity score sits about 77 points above Isotope Watches's typical scarcity.

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Limited data
No reliable restock cadence is established for this reference yet.
77
May 2026
Scarcity score · today
Scarcity scoreModeled77/1006
Compared with 255 active peers · Dive · 40 - 42mm · $1,000–$2,000
Scarcity rank (in its segment)Top 10%
Last buyableDerivedCalculated from recorded observations.~95 days ago
Price vs segment31% above segment median

Demand, sellout velocity, and restock cadence resume once this release is live.

Availability

Last confirmed: 11/1/26, 3:23 PM

2 availability changes recorded. Available once, for 305 days, on 9/26/25. Longest sold-out stretch: 13 days.

Tracked since 7/16/25 (473 days).

Coming soon8/11/26
82 days straight
November 2025
Today
Sold out · for 13 days7/29/26
Available · for 201 days1/9/26
Unknown · for 12 hours1/8/26

Price

Currently priced at $1,687.00, with 6 price changes recorded over the tracked period. The lowest recorded price was $1,663.00 on 11/6/25; the highest was $1,729.00 on 1/27/26. That's up from the $1,663.00 it was first tracked at.

$1,687.00 USD10/28/26
Unchanged · 61 days
$1,663.00
Mid-range for the tracked period
$1,729.00
$1,715.00 · up $31.369/2/26
$1,683.64 · down $30.368/11/26
$1,714.00 · up $41.007/16/26
$1,673.00 · down $24.006/19/26
$1,697.00 · down $32.004/11/26
$1,729.00 · up $66.001/27/26
$1,663.0011/6/25