Side by side
Jack Mason Strat-o-timer GMTvsSerket Watch Co Tachymetre
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Strat-o-timer GMT40mm
Tachymetre42.5mm
Power Reserve
Strat-o-timer GMT42h
Tachymetre—
Water Resistance
Strat-o-timer GMT200m
Tachymetre50m
MSRP
Strat-o-timer GMT$1,099
Tachymetre$299
Full specifications
Case
5 specsDiameter
40mm
42.5mm
Thickness
13.2mm
12mm
Lug-to-Lug
47mm
53mm
Lug Width
20mm
22mm
Water Resistance
200m
50m
Crystal & Dial
2 specsDial Color
—
Teal Blue
Lume
None
C3 SuperLuminova
Movement
3 specsCaliber
Miyota 9075
Seiko VK64
Type
Automatic
Mecaquartz
Power Reserve
42h
—
Pricing
1 specsMSRP
$1,099
$299
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