Side by side
Oak & Oscar The Humboldt GMT TitaniumvsMeia Lua Callisto
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
The Humboldt GMT Titanium39.5mm
Callisto42mm
Power Reserve
The Humboldt GMT Titanium56 hoursh
Callisto40h
Water Resistance
The Humboldt GMT Titanium200m
Callisto100m
MSRP
The Humboldt GMT Titanium$2,950
Callisto$661
Full specifications
Case
8 specsCategory
GMT
—
Diameter
39.5mm
42mm
Thickness
12.5mm
13.5mm
Lug-to-Lug
46.8mm
48mm
Lug Width
20mm
22mm
Material
Grade 5 Titanium
Stainless Steel
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid
Crystal & Dial
3 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
Green
—
Movement
3 specsCaliber
Sellita SW330
Miyota 9122
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Pricing
1 specsMSRP
$2,950
—
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