Side by side
Gruppo Gamma Vanguard Steel DatevsSeiko Prospex Sea 1968 Heritage Diver's GMT
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
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
Vanguard Steel Date42h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
Vanguard Steel Date100m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
Vanguard Steel Date$790
Prospex Sea 1968 Heritage Diver's GMT$1,500
Full specifications
Case
5 specsCategory
—
Diver
Thickness
12.6mm
12.9mm
Lug-to-Lug
49.5mm
48.6mm
Lug Width
22mm
20mm
Water Resistance
100m
200m
Crystal & Dial
3 specsAR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Forged Carbon
—
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel
Movement
4 specsCaliber
Miyota 9015
6R54
Power Reserve
42h
72h
Jewels
0
24
Complications
Date
None
Pricing
1 specsMSRP
$790
$1,500
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