Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special EditionvsUndone Rikishi Shiro Ao — White Blue

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Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
SeikoProspex Sea 1965 Heritage Diver's Save the Ocean Special Edition

MSRP $1,250

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Rikishi Shiro Ao — White Blue
UndoneRikishi Shiro Ao — White Blue

MSRP $595

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Buy from Undone Used on eBay

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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.

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition at true scale

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

Undone Rikishi Shiro Ao — White Blue at true scale

Rikishi Shiro Ao — White Blue

Diameter

40.5mm

40mm

Lug-to-Lug

47.6mm

n/a

Thickness

13.2mm

lowest

13.8mm

Water Resistance

200m

highest

100m

Power Reserve

70h

n/a

MSRP

$1,250

$595

lowest

Movement

Seiko 6R35

Seiko NE57

Case

5 specs
Diameter
40.5mm
40mm
Thickness
13.2mm
13.8mm
Lug-to-Lug
47.6mm
n/a
Lug Width
20mm
n/a
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal 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 specs
Caliber
Seiko 6R35
Seiko NE57
Power Reserve
70h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$1,250
$595
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