Side by side
Hemel HD24 AutomaticvsOak & Oscar The Humboldt GMT SAR Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
HD24 Automatic40mm
The Humboldt GMT SAR Edition39.5mm
Power Reserve
HD24 Automatic40h
The Humboldt GMT SAR Edition56 hoursh
Water Resistance
HD24 Automatic200m
The Humboldt GMT SAR Edition200m
MSRP
HD24 Automatic$300
The Humboldt GMT SAR Edition$2,950
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
40mm
39.5mm
Thickness
13mm
12.5mm
Lug-to-Lug
48mm
46.8mm
Material
316L Stainless Steel
Grade 5 Titanium
Caseback
Solid
Solid screw-down
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Gallant USAF Edition
Black
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Seiko NH38A
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56 hoursh
Pricing
1 specsMSRP
$300
$2,950
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