Side by side
Gruppo Gamma Vanguard Steel DatevsLum-Tec B66 Day Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Vanguard Steel Date42mm
B66 Day Date44mm
Power Reserve
Vanguard Steel Date42h
B66 Day Date40h
Water Resistance
Vanguard Steel Date100m
B66 Day Date100m
MSRP
Vanguard Steel Date$790
B66 Day Date$545
Full specifications
Case
5 specsCategory
—
Sport
Diameter
42mm
44mm
Thickness
12.6mm
—
Lug-to-Lug
49.5mm
51.5mm
Material
Stainless Steel
Titanium (DLC coated)
Crystal & Dial
4 specsCrystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Forged Carbon
Standard
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Miyota 9015
—
Power Reserve
42h
40h
Complications
Date
None
Pricing
1 specsMSRP
$790
$545
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