Side by side
Oak & Oscar The Humboldt GMTvsSheffield Deep Gray 300
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
Deep Gray 30042mm
Power Reserve
The Humboldt GMT56 hoursh
Deep Gray 30040h
Water Resistance
The Humboldt GMT200m
Deep Gray 300300m
MSRP
The Humboldt GMT$2,175
Deep Gray 300$258
Full specifications
Case
9 specsCategory
GMT
—
Diameter
39.5mm
42mm
Thickness
12.5mm
13.8mm
Lug-to-Lug
46.8mm
52mm
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
—
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW330
Seiko NH35
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,175
—
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