Spinnaker Dumas AutomaticvsDOXA SUB 300
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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

SUB 300
Diameter
44mm
42.5mm
Lug-to-Lug
48mm
n/a
Thickness
15mm
n/a
Water Resistance
300m
300m
Power Reserve
n/a
38h
MSRP
$239
lowest
$2,890
Movement
Seiko NH35
Automatic
Case
5 specsCrystal & Dial
4 specsMovement
2 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.
The DOXA SUB 300 is widely praised for its wearability, vibrant color options, and modern updates like improved lume, with reviewers calling it the brand's most desirable model. Owners note its comfortable wear, clean cushion case, and legible dials, though some find the 42.5mm case a bit large. The bezel action is outstanding, and the beads-of-rice bracelet contributes to a smaller perceived size. However, some owners report issues with bracelet end links sticking out, a sharp clasp edge, sub-standard screw pins, and disappointing lume. The polished bezel surface is also noted as prone to scratches, and the clasp's top section and clip are described as feeling "tinnyness" and too sixties. On balance, owners and reviewers rate the DOXA SUB 300 highly for its compelling charm and modern updates, despite some noted bracelet and clasp refinements.
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