Side by side
Jack Mason Strat-o-timer GMTvsSeiko Alpinist
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 GMT42mm
Alpinist39.5mm
Power Reserve
Strat-o-timer GMT40h
Alpinist70h
Water Resistance
Strat-o-timer GMT200m
Alpinist200m
MSRP
Strat-o-timer GMT$1,149
Alpinist$750
Full specifications
Case
5 specsCategory
—
Field
Diameter
42mm
39.5mm
Lug-to-Lug
49mm
46.4mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 9075
6R35
Power Reserve
40h
70h
Jewels
25
24
Pricing
1 specsMSRP
$1,149
$750
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