Side by side
Jack Mason Strat-o-timer GMTvsSerket Watch Co Reef
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Strat-o-timer GMT40mm
Reef46mm
Power Reserve
Strat-o-timer GMT42h
Reef38h
Water Resistance
Strat-o-timer GMT200m
Reef300m
MSRP
Strat-o-timer GMT$1,099
Reef$899
Full specifications
Case
5 specsDiameter
40mm
46mm
Thickness
13.2mm
14mm
Lug-to-Lug
47mm
52mm
Lug Width
20mm
24mm
Water Resistance
200m
300m
Crystal & Dial
1 specsDial Color
—
Black
Movement
2 specsCaliber
Miyota 9075
Sellita SW200-1
Power Reserve
42h
38h
Pricing
1 specsMSRP
$1,099
$899
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