Arethusa Watch Co World DivervsSeiko Prospex Sea

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World Diver
Arethusa Watch CoWorld Diver

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Buy from Arethusa Watch Co Used on eBay
Prospex Sea
SeikoProspex Sea

MSRP $1,100

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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

41.3mm

Lug-to-Lug

47.5mm

lowest

48.2mm

Thickness

13.5mm

12.5mm

lowest

Water Resistance

200m

300m

highest

Power Reserve

n/a

72h

MSRP

n/a

$1,100

Movement

Seiko NH35

Seiko 6R55

Case

5 specs
Diameter
40mm
41.3mm
Thickness
13.5mm
12.5mm
Lug-to-Lug
47.5mm
48.2mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

3 specs
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 6R55
Power Reserve
n/a
72h
Jewels
0
24

Pricing

1 specs
MSRP
n/a
$1,100
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