Side by side
Oak & Oscar The Humboldt GMT TitaniumvsSeiko Astron
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 GMT Titanium39.5mm
Astron42mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Astron40h
Water Resistance
The Humboldt GMT Titanium200m
Astron100m
MSRP
The Humboldt GMT Titanium$2,950
Astron$2,500
Full specifications
Case
7 specsDiameter
39.5mm
42mm
Thickness
12.5mm
12.4mm
Lug-to-Lug
46.8mm
49.5mm
Lug Width
20mm
14mm
Material
Grade 5 Titanium
Titanium
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Super-clear coating
Dial Color
Green
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)
Movement
5 specsCaliber
Sellita SW330
5X83
Type
Automatic
Quartz
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Jewels
25
14
Pricing
1 specsMSRP
$2,950
$2,500
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