Side by side
Hamilton Jazzmaster Auto ChronovsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Jazzmaster Auto Chrono42mm
Reef Mariana40mm
Power Reserve
Jazzmaster Auto Chrono60h
Reef Mariana—
Water Resistance
Jazzmaster Auto Chrono100m
Reef Mariana200m
MSRP
Jazzmaster Auto Chrono$2,095
Reef Mariana$449
Full specifications
Case
6 specsCategory
Chronograph
—
Diameter
42mm
40mm
Thickness
15.23mm
13.2mm
Lug-to-Lug
46mm
47.5mm
Lug Width
22mm
20mm
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Black
Orange
Lume
None
BGW9
Movement
2 specsCaliber
H-21
Seiko NH35
Power Reserve
60h
—
Pricing
1 specsMSRP
$2,095
$449
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