Side by side
Oak & Oscar The Humboldt GMT TitaniumvsZelos Spearfish GMT
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 Titanium39.5mm
Spearfish GMT40mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Spearfish GMT40h
Water Resistance
The Humboldt GMT Titanium200m
Spearfish GMT200m
MSRP
The Humboldt GMT Titanium$2,950
Spearfish GMT$999
Full specifications
Case
5 specsDiameter
39.5mm
40mm
Thickness
12.5mm
13mm
Lug-to-Lug
46.8mm
40mm
Material
Grade 5 Titanium
316L Stainless Steel
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
Green
Frost
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW330
Sellita SW330-2
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,950
$999
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