Side by side
Hamilton Jazzmaster Auto ChronovsSerket Watch Co Reef X
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Jazzmaster Auto Chrono42mm
Reef X42.5mm
Power Reserve
Jazzmaster Auto Chrono60h
Reef X40h
Water Resistance
Jazzmaster Auto Chrono100m
Reef X200m
MSRP
Jazzmaster Auto Chrono$2,095
Reef X$399
Full specifications
Case
5 specsCategory
Chronograph
—
Diameter
42mm
42.5mm
Thickness
15.23mm
12.7mm
Lug-to-Lug
46mm
49mm
Water Resistance
100m
200m
Crystal & Dial
1 specsDial Color
Black
Yellow
Movement
2 specsCaliber
H-21
Miyota 8215
Power Reserve
60h
40h
Pricing
1 specsMSRP
$2,095
$399
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