Side by side
Jack Mason Strat-o-timer GMTvsTSAO Baltimore OLD BAY Timepiece
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
7 of 29 specs differDiameter
Strat-o-timer GMT42mm
OLD BAY Timepiece40mm
Power Reserve
Strat-o-timer GMT40h
OLD BAY Timepiece41h
Water Resistance
Strat-o-timer GMT200m
OLD BAY Timepiece200m
MSRP
Strat-o-timer GMT$1,149
OLD BAY Timepiece$550
Full specifications
Case
4 specsDiameter
42mm
40mm
Lug-to-Lug
49mm
46mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Movement
2 specsCaliber
Miyota 9075
Seiko NH38
Power Reserve
40h
41h
Pricing
1 specsMSRP
$1,149
$550
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