Side by side
Lum-Tec B68 Day DatevsOblvlo GCM Mechanical
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
B68 Day Date44mm
GCM Mechanical41mm
Power Reserve
B68 Day Date40h
GCM Mechanical42h
Water Resistance
B68 Day Date200m
GCM Mechanical50m
MSRP
B68 Day Date$595
GCM Mechanical$231
Full specifications
Case
6 specsDiameter
44mm
41mm
Thickness
—
12mm
Lug-to-Lug
51.5mm
46mm
Lug Width
22mm
21mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
200m
50m
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
Dial Color
B68 Day Date
Black
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Ronda 515
Miyota 82S5
Type
Quartz
Automatic
Power Reserve
40h
42h
Pricing
1 specsMSRP
$595
$231
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