Raven Custom - 39mm 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.

Custom - 39mm Diver

Reef Mariana
Diameter
39mm
40mm
Lug-to-Lug
n/a
47.5mm
Thickness
n/a
13.2mm
Water Resistance
200m
200m
MSRP
$550
$449
lowest
Movement
Seiko NH35
Seiko NH35
Case
3 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 Raven Custom 39mm Diver for its ideal 39mm size, excellent legibility, and satisfying bezel action. The lume is also a strong point, and the overall design is considered refined and exceeding expectations for its price. Some owners find the stock bracelet too simple for the case's finish and opt for aftermarket options, while others describe the included bracelet as "super comfy." One reviewer notes the prominent crown may be divisive. On balance, owners and reviewers rate the Raven Custom 39mm Diver highly for its exceptional value and wearability.
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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