Side by side
Oak & Oscar The Humboldt GMT SAR EditionvsBoldr Ranger
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
The Humboldt GMT SAR Edition39.5mm
Ranger40mm
Power Reserve
The Humboldt GMT SAR Edition56 hoursh
Ranger40h
Water Resistance
The Humboldt GMT SAR Edition200m
Ranger200m
MSRP
The Humboldt GMT SAR Edition$2,950
Ranger$299
Full specifications
Case
6 specsCategory
GMT
Tool
Diameter
39.5mm
40mm
Thickness
12.5mm
12mm
Lug-to-Lug
46.8mm
46mm
Material
Grade 5 Titanium
Stainless Steel
Caseback
Solid screw-down
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Yes
Dial Color
Black
Kopje
Movement
3 specsCaliber
Sellita SW330
NH35A
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,950
$299
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