Serket Watch Co Reef MarianavsThorn Marine 200 Master Diver
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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.
Reef Mariana
Marine 200 Master Diver
Diameter
40mm
42mm
Lug-to-Lug
47.5mm
lowest
48.5mm
Thickness
13.2mm
12.4mm
lowest
Water Resistance
200m
200m
MSRP
$449
$179
lowest
Movement
Seiko NH35
Seiko NH35
Case
4 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Owners widely praise the Thorn Marine 200 Master Diver Watch for its 200m water resistance and screw-down crown, making it suitable for swimming and diving. The bracelet on this Pelagos-style model is considered excellent, and one owner finds the watch comfortable and a good value for daily wear at $131. However, some find the lume only okay and the bezel a bit stiff, while another owner notes the Thorn text on the dial is unnecessary clutter. On balance, owners rate the Thorn Marine 200 Master Diver Watch highly for its robust water resistance and comfortable, well-received bracelet at its price point.
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