Side by side
Jack Mason Strat-o-timer GMTvsSerket Watch Co Reef X Diver
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
8 of 29 specs differDiameter
Strat-o-timer GMT40mm
Reef X Diver43mm
Power Reserve
Strat-o-timer GMT42h
Reef X Diver40h
Water Resistance
Strat-o-timer GMT200m
Reef X Diver200m
MSRP
Strat-o-timer GMT$1,099
Reef X Diver$499
Full specifications
Case
4 specsDiameter
40mm
43mm
Thickness
13.2mm
12.7mm
Lug-to-Lug
47mm
50mm
Lug Width
20mm
22mm
Crystal & Dial
1 specsDial Color
—
Pink
Movement
2 specsCaliber
Miyota 9075
Seiko NH35
Power Reserve
42h
40h
Pricing
1 specsMSRP
$1,099
$499
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