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.

San Martin Sub Diver SN017 at true scale

Sub Diver SN017

Seiko 62MAS at true scale

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 specs
Thickness
13mm
13.2mm
Lug-to-Lug
n/a
47.6mm

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
Seiko 6R35
Power Reserve
0h
70h
Jewels
0
24

Pricing

1 specs
MSRP
$161
$1,200
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Reviews

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

San Martin Sub Diver SN017

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.

Seiko 62MAS

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.

From video reviewers

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.