Side by side

Jack Mason Strat-o-timer GMTvsSheffield 1A

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Strat-o-timer GMT
Jack MasonStrat-o-timer GMT
MSRP $1,099
1A
Sheffield1A
MSRP $223
Buy from Jack Mason ↗
Buy used on eBay ↗
Buy from Sheffield ↗
Buy used on eBay ↗

At a glance

8 of 29 specs differ
Diameter
Strat-o-timer GMT40mm
1A40mm
Power Reserve
Strat-o-timer GMT42h
1A—
Water Resistance
Strat-o-timer GMT200m
1A200m
MSRP
Strat-o-timer GMT$1,099
1A$223

Full specifications

Case

3 specs
Category
—
Diver
Thickness
13.2mm
12.8mm
Lug-to-Lug
47mm
46mm

Crystal & Dial

2 specs
Dial Color
—
White/Blue
Lume
None
Swiss blue lume

Movement

2 specs
Caliber
Miyota 9075
Seiko NH35A
Power Reserve
42h
—

Pricing

1 specs
MSRP
$1,099
$223
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