Cronos Water Ghost DivervsSerket Watch Co Reef Mariana
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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.

Water Ghost Diver

Reef Mariana
Diameter
40mm
40mm
Lug-to-Lug
47.8mm
47.5mm
lowest
Thickness
13.5mm
13.2mm
lowest
Water Resistance
200m
200m
MSRP
$189
lowest
$449
Movement
Seiko NH35
Seiko NH35
Case
4 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Cronos Water Ghost Diver 40mm (L6015M) for its excellent build quality and value, with one owner noting its accuracy at +/- 1 second per day on the wrist. Some owners report minor complaints regarding the end links and the 1.5x cyclops magnification. Overall, owners rate the Cronos Water Ghost Diver 40mm (L6015M) highly for its robust construction and impressive timekeeping at its price point.
Owners widely praise the Serket Watch Co Reef Mariana for its excellent value, citing the sapphire crystal, ceramic bezel, and reliable Seiko NH35 automatic movement at its price point. Some owners note the bezel turns too easily and suggest the lume could be stronger. Overall, owners rate the Serket Watch Co Reef Mariana highly for its eye-catching dial and bezel combination and strong feature set for the price.
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