Side by side
Duckworth Prestex Original AutomaticvsHamilton Khaki Aviation Air Race Auto
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Original Automatic39mm
Khaki Aviation Air Race Auto38mm
Power Reserve
Original Automatic40h
Khaki Aviation Air Race Auto80h
Water Resistance
Original Automatic200m
Khaki Aviation Air Race Auto50m
MSRP
Original Automatic$775
Khaki Aviation Air Race Auto$845
Full specifications
Case
6 specsCategory
—
Pilot
Diameter
39mm
38mm
Thickness
11mm
10.8mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
19mm
Water Resistance
200m
50m
Crystal & Dial
1 specsDial Color
—
Black
Movement
2 specsCaliber
Miyota 82S5
H-10
Power Reserve
40h
80h
Pricing
1 specsMSRP
$775
$845
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