DOXA SUB 300 BetavsSpinnaker Bradner 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.

DOXA SUB 300 Beta at true scale

SUB 300 Beta

Spinnaker Bradner Automatic at true scale

Bradner Automatic

Diameter

42.5mm

42mm

Lug-to-Lug

n/a

50mm

Thickness

n/a

15mm

Water Resistance

300m

highest

180m

Power Reserve

38h

n/a

MSRP

$2,490

$179

lowest

Movement

Automatic

Miyota 8215

Case

6 specs
Diameter
42.5mm
42mm
Thickness
n/a
15mm
Lug-to-Lug
n/a
50mm
Lug Width
20mm
22mm
Material
Stainless steel case
316L Stainless Steel
Water Resistance
300m
180m

Crystal & Dial

1 specs
Dial Color
n/a
Tidal Blue

Movement

2 specs
Caliber
n/a
Miyota 8215
Power Reserve
38h
0h

Pricing

1 specs
MSRP
$2,490
$179
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

DOXA SUB 300 Beta

The DOXA SUB 300 Beta is praised for its refined aesthetic and vintage charm, with a wave-patterned dial, ceramic bezel, and box-domed sapphire crystal. Owners find its 42.5mm case wears well due to its compact feel and short lug-to-lug length, making it suitable for smaller wrists and comfortable for all-day wear. The watch is powered by an automatic movement with a 38-hour power reserve. Some reviewers question the inclusion of a helium escape valve on this less tool-oriented design, and one owner notes the polished bezel is prone to scratches. Overall, owners and reviewers appreciate the DOXA SUB 300 Beta for its blend of classic dive watch appeal and modern wearability.

Spinnaker Bradner Automatic

Owners widely praise the Spinnaker Bradner's vibrant dial options and excellent lume on both indices and bezel, with one reviewer calling the textured dial's fine details and color-matched bezel lume a work of art. The bezel action is described as extremely crisp. However, some finishing on the minute ring is imprecise, and the inner bezel crown rotates too easily, with one owner finding the clasp unsatisfactory. The watch uses a Seiko NH35 automatic movement and is 42mm in case size with 180m water resistance. On balance, owners rate the Spinnaker Bradner highly for its eye-catching design and lume at its price point.

From video reviewers

The Spinnaker Atlantic Blue's reliable Seiko NH35 automatic movement is a key strength. The watch's lume performance is somewhat lacking, which may be a trade-off for some buyers. Reviewers disagree on the watch's bezel action, with one reviewer praising it as smooth and precise, while the other two do not mention it.