Side by side
Lum-Tec B68 Day DatevsSeiko Prospex Rotocall
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
B68 Day Date44mm
Prospex Rotocall37mm
Power Reserve
B68 Day Date40h
Prospex Rotocall40h
Water Resistance
B68 Day Date200m
Prospex Rotocall100m
MSRP
B68 Day Date$595
Prospex Rotocall$550
Full specifications
Case
6 specsDiameter
44mm
37mm
Thickness
—
10.6mm
Lug-to-Lug
51.5mm
43.5mm
Lug Width
22mm
20mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
200m
100m
Crystal & Dial
2 specsCrystal
Domed Sapphire
Hardlex
Dial Color
B68 Day Date
Black
Movement
1 specsCaliber
Ronda 515
A824
Pricing
1 specsMSRP
$595
$550
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