Side by side
Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsWilliam Wood Go You Big Red Fire Engine Watch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
8 of 29 specs differDiameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Go You Big Red Fire Engine Watch41mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Go You Big Red Fire Engine Watch40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Go You Big Red Fire Engine Watch100m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Go You Big Red Fire Engine Watch$895
Full specifications
Case
4 specsThickness
13mm
15mm
Lug-to-Lug
43.5mm
49mm
Lug Width
18mm
20mm
Water Resistance
300m
100m
Crystal & Dial
2 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Red
Movement
1 specsCaliber
Sellita SW220-1
Seiko NH35
Pricing
1 specsMSRP
$1,800
$895
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