Side by side

Gruppo Gamma Vanguard Steel DatevsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Vanguard Steel Date
Gruppo GammaVanguard Steel Date
MSRP $790
Prospex Sea 1968 Heritage Diver's GMT Watch
SeikoProspex Sea 1968 Heritage Diver's GMT Watch
MSRP $1,700

At a glance

13 of 29 specs differ
Diameter
Vanguard Steel Date42mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Vanguard Steel Date42h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Vanguard Steel Date100m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Vanguard Steel Date$790
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

5 specs
Category
—
Diver
Thickness
12.6mm
13.3mm
Lug-to-Lug
49.5mm
48.6mm
Lug Width
22mm
20mm
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Forged Carbon
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Miyota 9015
6R54
Power Reserve
42h
72h
Jewels
25
24
Complications
Date
None

Pricing

1 specs
MSRP
$790
$1,700

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