Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special EditionvsUndone Rikishi Shiro Ao — White Blue
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition
Rikishi Shiro Ao — White Blue
Diameter
40mm
40mm
Lug-to-Lug
46.4mm
n/a
Thickness
13mm
lowest
13.8mm
Water Resistance
300m
highest
100m
Power Reserve
72h
n/a
MSRP
$1,550
$595
lowest
Movement
Seiko 6R55
Seiko NE57
Case
4 specsThickness
13mm
13.8mm
Lug-to-Lug
46.4mm
n/a
Lug Width
20mm
n/a
Water Resistance
300m
100m
Crystal & Dial
4 specsCrystal Shape
Curved
n/a
AR Coating
Anti-reflective coating on inner surface
n/a
Dial Color
n/a
n/a
Lume
LumiBrite on hands, index(es) and bezel
None
Movement
3 specsCaliber
Seiko 6R55
Seiko NE57
Power Reserve
72h
0h
Jewels
24
0
Pricing
1 specsMSRP
$1,550
$595
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
DiscussionNot started
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.