Side by side
Hamilton American Classic RailRoad Auto ChronovsHemel Sky Racer Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
American Classic RailRoad Auto Chrono44mm
Sky Racer Automatic43mm
Power Reserve
American Classic RailRoad Auto Chrono60h
Sky Racer Automatic40h
Water Resistance
American Classic RailRoad Auto Chrono50m
Sky Racer Automatic50m
MSRP
American Classic RailRoad Auto Chrono$2,045
Sky Racer Automatic$700
Full specifications
Case
5 specsDiameter
44mm
43mm
Thickness
15.3mm
16mm
Lug-to-Lug
46mm
49mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Crystal & Dial
2 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Panda
Movement
2 specsCaliber
H-21
SL4617
Power Reserve
60h
40h
Pricing
1 specsMSRP
$2,045
$700
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