San Martin Gradient Dial Vintage DivevsSeiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition
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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.

Gradient Dial Vintage Dive

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition
Diameter
42.5mm
42mm
Lug-to-Lug
n/a
48.6mm
Thickness
13.7mm
13.3mm
lowest
Water Resistance
300m
300m
Power Reserve
n/a
72h
MSRP
$258
lowest
$1,750
Movement
Seiko NH35
Seiko 6R54
Case
3 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely report the San Martin Gradient Dial Vintage Dive SN036B offers good finishing for its price, making it suitable as a beater watch. The 42.5mm case and 300m water resistance provide significant wrist presence, though some owners find the designs lack originality. On balance, owners rate the San Martin Gradient Dial Vintage Dive SN036B highly for its finishing and value as a robust, everyday watch.
Owners find the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition very pretty with an excellent, non-bulky 42mm case. Reviewers note its upgraded clasp with a new diving suit extension system and a wave-patterned silvery-white dial. However, the price of €1900 for a Seiko 6R54 movement with accuracy of +25/-15 seconds per day is considered too expensive by some, and the 6000-unit production run is not seen as truly limited. On balance, owners and reviewers find the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition aesthetically pleasing with a comfortable case, though its value proposition is debated due to the movement's performance and price.
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