Side by side
Oak & Oscar The Humboldt GMTvsJack Mason Strat-o-timer GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
The Humboldt GMT39.5mm
Strat-o-timer GMT42mm
Power Reserve
The Humboldt GMT56 hoursh
Strat-o-timer GMT40h
Water Resistance
The Humboldt GMT200m
Strat-o-timer GMT200m
MSRP
The Humboldt GMT$2,175
Strat-o-timer GMT$1,149
Full specifications
Case
7 specsCategory
GMT
—
Diameter
39.5mm
42mm
Thickness
12.5mm
13.2mm
Lug-to-Lug
46.8mm
49mm
Lug Width
20mm
22mm
Finish
Brushed
Brushed and polished
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
White
—
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW330
Miyota 9075
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,175
$1,149
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