Cronos Sub Diver 44mm No Date (L6009)vsSinn 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.

Sub Diver 44mm No Date (L6009)

U18
Diameter
44mm
44mm
Lug-to-Lug
51.9mm
n/a
Thickness
17.1mm
15.5mm
lowest
Water Resistance
2000m
2000m
Power Reserve
n/a
42h
MSRP
$298
lowest
$3,488
Movement
Seiko NH35
Sellita SW300-1
Case
6 specsCrystal & Dial
5 specsMovement
6 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Cronos Sub Diver 44mm No Date (L6009) for its exceptional value, with one owner noting its 2000m water resistance and BGW9 Superluminova lume as standout features. The watch is described as a "beast" due to its 44mm case and 17mm thickness, though some find it wears surprisingly well for its size and is versatile for everyday and business casual wear. Some owners report the substantial weight and lug-to-lug distance make it feel heavy on the wrist, with one individual replacing the bracelet to reduce its overall weight. Overall, owners rate the Cronos Sub Diver 44mm No Date (L6009) highly for its impressive water resistance and value, despite its considerable heft.
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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