Side by side

Jack Mason Strat-o-timer GMTvsSheffield Allsport Diver 1

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

Strat-o-timer GMT
Jack MasonStrat-o-timer GMT
MSRP $1,099
Allsport Diver 1
SheffieldAllsport Diver 1

At a glance

8 of 29 specs differ
Diameter
Strat-o-timer GMT40mm
Allsport Diver 140mm
Power Reserve
Strat-o-timer GMT42h
Allsport Diver 1
Water Resistance
Strat-o-timer GMT200m
Allsport Diver 1200m
MSRP
Strat-o-timer GMT$1,099
Allsport Diver 1

Full specifications

Case

4 specs
Category
Diver
Thickness
13.2mm
13mm
Lug-to-Lug
47mm
48mm
Lug Width
20mm

Crystal & Dial

1 specs
Dial Color
Blue

Movement

2 specs
Caliber
Miyota 9075
Seiko NH35
Power Reserve
42h

Pricing

1 specs
MSRP
$1,099
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