Side by side
Decima GatekeepervsJack Mason Strat-o-timer GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Gatekeeper38mm
Strat-o-timer GMT42mm
Power Reserve
Gatekeeper42h
Strat-o-timer GMT40h
Water Resistance
Gatekeeper50m
Strat-o-timer GMT200m
MSRP
Gatekeeper$599
Strat-o-timer GMT$1,149
Full specifications
Case
6 specsDiameter
38mm
42mm
Thickness
9.9mm
13.2mm
Lug-to-Lug
46mm
49mm
Lug Width
—
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
200m
Crystal & Dial
2 specsAR Coating
Yes
Inner
Dial Color
White
—
Movement
2 specsCaliber
Miyota 9039
Miyota 9075
Power Reserve
42h
40h
Pricing
1 specsMSRP
$599
$1,149
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