Side by side
Oak & Oscar The Humboldt GMTvsBorealis Watch Co. Jamanta
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
Jamanta42.50mm
Power Reserve
The Humboldt GMT56 hoursh
Jamanta40h
Water Resistance
The Humboldt GMT200m
Jamanta300m
MSRP
The Humboldt GMT$2,175
Jamanta$415
Full specifications
Case
9 specsCategory
GMT
Diver
Diameter
39.5mm
42.50mm
Thickness
12.5mm
13.30mm
Lug-to-Lug
46.8mm
50.40mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
White
Black
Lume
Super-LumiNova
BGW9
Movement
3 specsCaliber
Sellita SW330
Miyota 9015
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,175
$415
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