Side by side
Hamilton American Classic RailRoad Auto ChronovsHemel HD24 Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
American Classic RailRoad Auto Chrono44mm
HD24 Automatic40mm
Power Reserve
American Classic RailRoad Auto Chrono60h
HD24 Automatic40h
Water Resistance
American Classic RailRoad Auto Chrono50m
HD24 Automatic200m
MSRP
American Classic RailRoad Auto Chrono$2,045
HD24 Automatic$300
Full specifications
Case
7 specsCategory
Chronograph
Diver
Diameter
44mm
40mm
Thickness
15.3mm
13mm
Lug-to-Lug
46mm
48mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
200m
Crystal & Dial
2 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Gallant USAF Edition
Movement
2 specsCaliber
H-21
Seiko NH38A
Power Reserve
60h
40h
Pricing
1 specsMSRP
$2,045
$300
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