Serket Watch Co Reef XvsSpinnaker Dumas Automatic
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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 X

Dumas Automatic
Diameter
42.5mm
44mm
Lug-to-Lug
49mm
48mm
lowest
Thickness
12.7mm
lowest
15mm
Water Resistance
200m
300m
highest
MSRP
$399
$239
lowest
Movement
Miyota 8215
Seiko NH35
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Serket Watch Co Reef X for its tool-less bezel and bracelet swap system, allowing for frequent customization. One owner notes the watch looks great and matches images. The bezel is described as huge, comparable to the Marathon SAR. One owner found the receipt paper quality to be off. Overall, owners rate the Serket Watch Co Reef X highly for its customization features and aesthetic appeal.
Owners widely praise the Spinnaker Dumas Automatic for its robust build quality, attractive textured blue dial, and excellent finishing for its price point. The watch is noted for its comfortable wearability, attributed to a short lug-to-lug distance, and owners report positive experiences with the Seiko NH35 movement. Some owners mention a mineral crystal instead of sapphire, a bracelet with a learning curve, and a crown that feels slightly small. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetic appeal and solid construction at a fair price.
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