Side by side
Boldr Expedition EnigmathvsOak & Oscar The Humboldt GMT Titanium
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
The bottom line
The 39.5mm The Humboldt GMT Titanium wears 1.5mm narrower than the 41mm Expedition Enigmath.
Check prices & track
Boldr Expedition Enigmath
MSRP $599
Oak & Oscar The Humboldt GMT Titanium
MSRP $2,950
At a glance
13 of 29 specs differDiameter
Expedition Enigmath41mm
The Humboldt GMT Titanium39.5mm
Power Reserve
Expedition Enigmath42h
The Humboldt GMT Titanium56 hoursh
Water Resistance
Expedition Enigmath200m
The Humboldt GMT Titanium200m
MSRP
Expedition Enigmath$599
The Humboldt GMT Titanium$2,950
Full specifications
Case
6 specsCategory
Tool
GMT
Diameter
41mm
39.5mm
Thickness
12.8mm
12.5mm
Lug-to-Lug
47.5mm
46.8mm
Material
Stainless Steel
Grade 5 Titanium
Caseback
Solid
Solid screw-down
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
AR Coating
Yes
Underside
Dial Color
Enigmath Coconino
Green
Movement
3 specsCaliber
Miyota 9039,
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
56 hoursh
Pricing
1 specsMSRP
$599
$2,950
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