Side by side
Brillier GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black FacevsOak & Oscar The Humboldt GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face38mm
The Humboldt GMT39.5mm
Power Reserve
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face40h
The Humboldt GMT56 hoursh
Water Resistance
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face100m
The Humboldt GMT200m
MSRP
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face$795
The Humboldt GMT$2,175
Full specifications
Case
8 specsCategory
—
GMT
Diameter
38mm
39.5mm
Thickness
12mm
12.5mm
Lug-to-Lug
46mm
46.8mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
White
Lume
None
Super-LumiNova
Movement
3 specsCaliber
—
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56 hoursh
Pricing
1 specsMSRP
$795
$2,175
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