Seiko Prospex SeavsUndone Rikishi Shiro Ao — White Blue

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Prospex Sea
SeikoProspex Sea

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

MSRP $595

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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 at true scale

Prospex Sea

Undone Rikishi Shiro Ao — White Blue at true scale

Rikishi Shiro Ao — White Blue

Diameter

42mm

40mm

Lug-to-Lug

48.6mm

n/a

Thickness

13.3mm

lowest

13.8mm

Water Resistance

300m

highest

100m

Power Reserve

72h

n/a

MSRP

n/a

$595

Movement

Seiko 6R54

Seiko NE57

Case

5 specs
Diameter
42mm
40mm
Thickness
13.3mm
13.8mm
Lug-to-Lug
48.6mm
n/a
Lug Width
20mm
n/a
Water Resistance
300m
100m

Crystal & Dial

3 specs
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 6R54
Seiko NE57
Power Reserve
72h
0h
Jewels
24
0

Pricing

1 specs
MSRP
n/a
$595
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