Side by side
Hamilton Jazzmaster Auto ChronovsTowson Watch Co CHOPTANK
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
9 of 29 specs differDiameter
Jazzmaster Auto Chrono42mm
CHOPTANK40mm
Power Reserve
Jazzmaster Auto Chrono60h
CHOPTANK—
Water Resistance
Jazzmaster Auto Chrono100m
CHOPTANK50m
MSRP
Jazzmaster Auto Chrono$2,095
CHOPTANK$4,250
Full specifications
Case
5 specsCategory
Chronograph
—
Diameter
42mm
40mm
Thickness
15.23mm
13.5mm
Lug Width
22mm
20mm
Water Resistance
100m
50m
Crystal & Dial
1 specsDial Color
Black
—
Movement
2 specsCaliber
Hamilton H-21
Valjoux 7751
Power Reserve
60h
0h
Pricing
1 specsMSRP
$2,095
$4,250
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