Side by side
Jack Mason Strat-o-timer GMTvsGrand Seiko SBGE253
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
SBGE25340.5mm
Power Reserve
Strat-o-timer GMT40h
SBGE25372h
Water Resistance
Strat-o-timer GMT200m
SBGE253200m
MSRP
Strat-o-timer GMT$1,149
SBGE253$6,900
Full specifications
Case
6 specsCategory
—
GMT
Diameter
42mm
40.5mm
Thickness
13.2mm
14.7mm
Lug-to-Lug
49mm
48.7mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
2 specsAR Coating
Inner
Yes
Dial Color
—
Black
Movement
3 specsCaliber
Miyota 9075
9R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Pricing
1 specsMSRP
$1,149
$6,900
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