Side by side
Seiko Prospex SPEEDTIMER Mechanical ChronographvsStewart Dawson Royal Marines
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
12 of 29 specs differDiameter
Prospex SPEEDTIMER Mechanical Chronograph42mm
Royal Marines42mm
Power Reserve
Prospex SPEEDTIMER Mechanical Chronograph45h
Royal Marines41h
Water Resistance
Prospex SPEEDTIMER Mechanical Chronograph100m
Royal Marines100m
MSRP
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Royal Marines$1,451
Full specifications
Case
4 specsCategory
Chronograph
—
Thickness
14.6mm
12.5mm
Lug-to-Lug
49.5mm
48mm
Lug Width
20mm
—
Crystal & Dial
4 specsCrystal Shape
Curved
—
AR Coating
Anti-reflective coating on inner surface
—
Dial Color
—
Green
Lume
LumiBrite on hands and index(es)
Super-LumiNova
Movement
3 specsCaliber
Seiko 8R48
Sellita SW200-1
Power Reserve
45h
41h
Jewels
34
0
Pricing
1 specsMSRP
$2,500
$1,451
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