Side by side
Jack Mason Strat-o-timer GMTvsSheffield 1A 40mm
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
5 of 29 specs differDiameter
Strat-o-timer GMT40mm
1A 40mm40mm
Power Reserve
Strat-o-timer GMT42h
1A 40mm40h
Water Resistance
Strat-o-timer GMT200m
1A 40mm200m
MSRP
Strat-o-timer GMT$1,099
1A 40mm$228
Full specifications
Case
2 specsThickness
13.2mm
13mm
Lug-to-Lug
47mm
48mm
Movement
2 specsCaliber
Miyota 9075
Seiko NH35
Power Reserve
42h
40h
Pricing
1 specsMSRP
$1,099
$228
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Jack Mason Strat-o-timer GMT vs Sheffield 1A 40mm gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Jack Mason Strat-o-timer GMTvsSheffield 1A 40mmDuckworth Prestex Broadgate GMT AutomaticvsSheffield 1A 40mmSheffield 1A 40mmvsTSAO Baltimore Limited Edition RedBar BaltimoreSheffield 1A 40mmvsTSAO Baltimore LE DOW - MeteoriteJack Mason Strat-o-timer GMTvsSheffield 1A SCR II BlueJack Mason Strat-o-timer GMTvsSheffield 1A