Side by side
Oak & Oscar The Humboldt GMTvsOblvlo JM Rotor
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
The Humboldt GMT39.5mm
JM Rotor42mm
Power Reserve
The Humboldt GMT56 hoursh
JM Rotor42h
Water Resistance
The Humboldt GMT200m
JM Rotor50m
MSRP
The Humboldt GMT$2,175
JM Rotor$299
Full specifications
Case
8 specsCategory
GMT
Sport
Diameter
39.5mm
42mm
Thickness
12.5mm
13mm
Lug-to-Lug
46.8mm
46mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Brushed and polished
Water Resistance
200m
50m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
White
Black
Lume
Super-LumiNova
None
Movement
4 specsCaliber
Sellita SW330
Miyota 8215
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
42h
Jewels
25
21
Pricing
1 specsMSRP
$2,175
$299
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