Side by side
Jack Mason Strat-o-timer GMTvsOblvlo JM Tourbillon
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Strat-o-timer GMT40mm
JM Tourbillon42mm
Power Reserve
Strat-o-timer GMT42h
JM Tourbillon65h
Water Resistance
Strat-o-timer GMT200m
JM Tourbillon50m
MSRP
Strat-o-timer GMT$1,099
JM Tourbillon$516
Full specifications
Case
5 specsCategory
—
Skeleton
Diameter
40mm
42mm
Thickness
13.2mm
12mm
Lug-to-Lug
47mm
46mm
Water Resistance
200m
50m
Crystal & Dial
2 specsDial Color
—
Black
Lume
None
Super-LumiNova
Movement
4 specsCaliber
Miyota 9075
OBL.8024
Power Reserve
42h
65h
Jewels
25
20
Complications
None
Tourbillon
Pricing
1 specsMSRP
$1,099
$516
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