Spinnaker Dumas AutomaticvsSTEELDIVE SD1988
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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.

Dumas Automatic

SD1988
Diameter
44mm
55.7mm
Lug-to-Lug
48mm
n/a
Thickness
15mm
lowest
15.2mm
Water Resistance
300m
1200m
highest
MSRP
$239
lowest
$339
Movement
Seiko NH35
Seiko NH35
Case
5 specsCrystal & Dial
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Owners widely praise the STEELDIVE SD1988's case finishing, noting it is surprisingly good for the $180 price point, with circular brushing on top and notably better linear brushing on the case back. The lume is also considered excellent. The watch features a Seiko NH35 automatic movement and has a 1200m water resistance rating. Its large 55.7mm case size is noted as a potential challenge for photography. On balance, owners rate the STEELDIVE SD1988 highly for its exceptional value, particularly the finishing and lume at its accessible price.
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