Seiko Prospex Sea Save the Ocean Special EditionvsTSAO Baltimore Bronze Torsk-Diver Pro Raven Purple
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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.

Prospex Sea Save the Ocean Special Edition

Bronze Torsk-Diver Pro Raven Purple
Diameter
45mm
43mm
Lug-to-Lug
47.7mm
lowest
50mm
Thickness
13.2mm
lowest
13.6mm
Water Resistance
200m
200m
Power Reserve
41h
highest
40h
MSRP
$625
lowest
$899
Movement
Seiko 4R36
TSAO Baltimore MD-1
Case
4 specsDiameter
45mm
43mm
Thickness
13.2mm
13.6mm
Lug-to-Lug
47.7mm
50mm
Material
Stainless Steel
Bronze
Crystal & Dial
3 specsAR 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 4R36
TSAO Baltimore MD-1
Power Reserve
41h
40h
Jewels
24
0
Pricing
1 specsMSRP
$625
$899
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