Side by side
Lum-Tec B68 Day DatevsOak & Oscar The Humboldt GMT SAR Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
B68 Day Date44mm
The Humboldt GMT SAR Edition39.5mm
Power Reserve
B68 Day Date40h
The Humboldt GMT SAR Edition56 hoursh
Water Resistance
B68 Day Date200m
The Humboldt GMT SAR Edition200m
MSRP
B68 Day Date$595
The Humboldt GMT SAR Edition$2,950
Full specifications
Case
7 specsCategory
Sport
GMT
Diameter
44mm
39.5mm
Thickness
—
12.5mm
Lug-to-Lug
51.5mm
46.8mm
Lug Width
22mm
20mm
Material
316L Stainless Steel (DLC coated)
Grade 5 Titanium
Caseback
Solid
Solid screw-down
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
B68 Day Date
Black
Lume
None
Super-LumiNova
Movement
4 specsCaliber
Ronda 515
Sellita SW330
Type
Quartz
Automatic
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56 hoursh
Pricing
1 specsMSRP
$595
$2,950
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