Automatic

40 mm

Isotope Watches  Hydrium Grey Reef Shark

In stock now

$1,472

Buy it directly from the brand's website.

Isotope Watches Hydrium Grey Reef Shark

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What you'll get

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Isotope Watches just released a new watch

About this Watch

A Dive watch, in a round stainless steel case, 40mm, with a gray matte-sandblasted dial, sword hands and dot indices, powered by the Landeron 24.

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 256 comparable dive watches tracked in this size and price class range 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

Landeron 24

Power reserve

40 hours

Water resistance

30 bar

Crystal Type

Sapphire

Crystal Description

Double-domed sapphire with anti-reflective coating

Statistics

Its scarcity score of 0/100 is the lowest possible, placing it among the easiest-to-get tracked watches in the catalog. That tracks closely with what's typical for Isotope Watches's catalog.

This reference has no sell-out history of its own yet.

How Isotope Watches models usually sell out and restock

Worth tracking

Limited data

Currently available with no strong urgency signal either way.

Availability

One availability change recorded.

Available

63 days straight

9/10/26

August 2026

Today

  • Coming soon

    · for 29 days

    8/11/26

Tracked since 8/11/26 (92 days).

Last confirmed:

Price

Currently priced at $1,472.00, up from $1,462.48 on 9/2/26.

$1,472.00 USD

11/11/26

August 2026

Today

  • $1,496.00 → $1,472.00

    -1.6%

    11/11/26

  • $1,462.48 → $1,496.00

    +2.3%

    9/2/26

  • $1,462.48

    8/12/26

Unchanged · 71 days

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