Side by side
Aera Instruments D-1 DivervsGruppo Gamma Vanguard Steel Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
D-1 Diver44mm
Vanguard Steel Date42mm
Power Reserve
D-1 Diver41h
Vanguard Steel Date42h
Water Resistance
D-1 Diver300m
Vanguard Steel Date100m
MSRP
D-1 Diver$2,300
Vanguard Steel Date$790
Full specifications
Case
5 specsDiameter
44mm
42mm
Thickness
15.9mm
12.6mm
Lug-to-Lug
49.55mm
49.5mm
Material
Titanium
Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
—
Forged Carbon
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Sellita SW200-1
Miyota 9015
Power Reserve
41h
42h
Complications
None
Date
Pricing
1 specsMSRP
$2,300
$790
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