Side by side
Oak & Oscar The Humboldt GMT SAR EditionvsOblvlo JM Rotor
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 GMT SAR Edition39.5mm
JM Rotor42mm
Power Reserve
The Humboldt GMT SAR Edition56 hoursh
JM Rotor42h
Water Resistance
The Humboldt GMT SAR Edition200m
JM Rotor50m
MSRP
The Humboldt GMT SAR Edition$2,950
JM Rotor$299
Full specifications
Case
7 specsCategory
GMT
Sport
Diameter
39.5mm
42mm
Thickness
12.5mm
13mm
Lug-to-Lug
46.8mm
46mm
Material
Grade 5 Titanium
Stainless Steel
Water Resistance
200m
50m
Caseback
Solid screw-down
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
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
$2,950
$299
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