San Martin Sub Diver SN017vsSeiko 62MAS
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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.

Sub Diver SN017

62MAS
Diameter
40.5mm
40.5mm
Lug-to-Lug
n/a
47.6mm
Thickness
13mm
lowest
13.2mm
Water Resistance
200m
200m
Power Reserve
n/a
70h
MSRP
$161
lowest
$1,200
Movement
Seiko NH35
Seiko 6R35
Case
2 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the San Martin SN017 for its superb finishing and value, with many noting its impressive build quality for the price. Some owners report exceptional timekeeping and lume, while others find the case and bracelet edges sharp, causing discomfort. Recent V3 units have shown date window misalignment issues, a departure from earlier versions. One owner found the bezel action to be poor, though another confirmed flawless performance on multiple scuba dives. Overall, owners rate the San Martin SN017 highly for its impressive finishing and features at a low price point.
Owners widely praise the Seiko 62MAS for its beautiful vintage-inspired finishing, crisp bezel action, and overall build quality, with many appreciating its comfortable 40.5mm case and slim apparent height. Some owners report accuracy issues with the 6R movement, while others find it runs within specifications, and opinions are split on whether the 40mm size is too large for smaller wrists, with some noting it can wear top-heavy. The price point is considered high by some, though others deem it fair for a new watch. Overall, owners and reviewers rate the Seiko 62MAS highly for its faithful recreation of the original design and refined modern interpretation.
The 37.5mm-38mm case size is a significant strength, offering a historically accurate and comfortable fit. Reviewers did not agree on any specific weaknesses.
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