Arethusa Watch Co World DivervsSeiko Prospex Sea

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World Diver
Arethusa Watch CoWorld Diver

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Prospex Sea
SeikoProspex Sea

MSRP $900

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Buy from Seiko 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.

Arethusa Watch Co World Diver at true scale

World Diver

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

40mm

41mm

Lug-to-Lug

47.5mm

46.9mm

lowest

Thickness

13.5mm

12.3mm

lowest

Water Resistance

200m

200m

Power Reserve

n/a

70h

MSRP

n/a

$900

Movement

Seiko NH35

Seiko 6R35

Case

4 specs
Diameter
40mm
41mm
Thickness
13.5mm
12.3mm
Lug-to-Lug
47.5mm
46.9mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
n/a
$900
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