Side by side
Astor + Banks Fortitude ProvsOak & Oscar The Humboldt GMT Titanium
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Fortitude Pro38.5mm
The Humboldt GMT Titanium39.5mm
Power Reserve
Fortitude Pro40h
The Humboldt GMT Titanium56 hoursh
Water Resistance
Fortitude Pro200m
The Humboldt GMT Titanium200m
MSRP
Fortitude Pro$675
The Humboldt GMT Titanium$2,950
Full specifications
Case
6 specsCategory
Sport
GMT
Diameter
38.5mm
39.5mm
Thickness
11.9mm
12.5mm
Lug-to-Lug
45.5mm
46.8mm
Material
316L Stainless Steel
Grade 5 Titanium
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Magenta
Green
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Miyota 9015
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56 hoursh
Pricing
1 specsMSRP
$675
$2,950
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