San Martin Automatic Dive SN0123GvsSpinnaker Hass 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.

Automatic Dive SN0123G

Hass Automatic
Diameter
44mm
43mm
Lug-to-Lug
n/a
50mm
Thickness
n/a
16.5mm
Water Resistance
200m
300m
highest
MSRP
$148
lowest
$445
Movement
Seiko NH35
Seiko NH35
Case
6 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 San Martin Automatic Dive SN0123G for its exceptional value, noting fantastic lume and construction for the price, with many appreciating the sandblasted steel finish and asymmetric case design as a wicked retro look. The bezel is found useful for tracking a second time zone. However, some owners find the 44mm case too large for smaller wrists. Accuracy varies, with one owner reporting a loss of about 3 seconds per day. One owner noted a crooked 6 o'clock index. Overall, owners rate the San Martin Automatic Dive SN0123G highly for its impressive finishing and tool watch utility at an accessible price point.
Owners widely praise the Spinnaker Hass Automatic for its quality and vibrant dial options at an accessible price point. The watch features a Seiko NH35 automatic movement and 300m water resistance. Some owners find Spinnaker watches, including the Hass Automatic, to be on the thicker side, with one user noting a previous model was considered comically large. One owner reported a quality issue with a different Spinnaker model where the crown detached. Overall, owners rate the Spinnaker Hass Automatic highly for its impressive build quality and fun aesthetic relative to its price.
The dial's recovered marine plastic construction with textured finish provides distinctive material differentiation at the entry-level dive watch price point, and the sapphire crystal with anti-reflective coating ensures strong on-wrist legibility. The 300m water resistance and automatic movement deliver capable specifications, though bracelet quality and fit remain underspecified across reviews.
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