Crafter Blue Hyperion OceanvsSinn U18
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Hyperion Ocean

U18
Diameter
45mm
44mm
Thickness
16.3mm
15.5mm
lowest
Water Resistance
600m
2000m
highest
Power Reserve
n/a
42h
MSRP
n/a
$3,488
Movement
Sellita SW200-1
Sellita SW300-1
Case
6 specsCrystal & Dial
4 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Crafter Blue Hyperion Ocean is a Swiss-made dive watch praised for its impressive specifications at its price point, including 600m water resistance and a Sellita SW200 automatic movement. Owners note the 45mm case, particularly on the steel bracelet, can feel substantial, though the vulcanized rubber strap is described as flexible and comfortable, suitable for professional diving. Some reviewers question the practicality of screwed pushers on a diving chronograph. Kickstarter pricing started at $599. On balance, owners and reviewers rate the Crafter Blue Hyperion Ocean highly for its robust build and strong value proposition in the dive watch market.
The Sinn U18 is lauded for its unique deep blue/green dial with three-dimensional oxygen bubbles that shift with light, and its comfortable, easily adjustable bracelet. Owners describe the 44mm case as having apparent thickness, with one noting minor wear on the underside of the lugs from strap changes. The watch is praised for its versatility, amazing accuracy, and great quality. The Sinn U18 comes with a Sellita SW300-1 movement and a 2000-meter dive specification. On balance, owners and reviewers rate the Sinn U18 highly for its unique dial and overall quality at its price point.
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