Side by side
Seiko Prospex SeavsStewart Dawson Royal Marines
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Prospex Sea41.3mm
Royal Marines42mm
Power Reserve
Prospex Sea72h
Royal Marines41h
Water Resistance
Prospex Sea300m
Royal Marines100m
MSRP
Prospex Sea$1,100
Royal Marines$1,451
Full specifications
Case
6 specsCategory
Diver
—
Diameter
41.3mm
42mm
Thickness
12.5mm
12.5mm
Lug-to-Lug
48.2mm
48mm
Lug Width
20mm
—
Water Resistance
300m
100m
Crystal & Dial
3 specsAR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Green
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova
Movement
3 specsCaliber
6R55
Sellita SW200
Power Reserve
72h
41h
Jewels
24
25
Pricing
1 specsMSRP
$1,100
—
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