Side by side
Gruppo Gamma Vanguard Steel DatevsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Vanguard Steel Date42mm
Prospex Sea41.3mm
Power Reserve
Vanguard Steel Date42h
Prospex Sea72h
Water Resistance
Vanguard Steel Date100m
Prospex Sea300m
MSRP
Vanguard Steel Date$790
Prospex Sea$1,100
Full specifications
Case
6 specsCategory
—
Diver
Diameter
42mm
41.3mm
Thickness
12.6mm
12.5mm
Lug-to-Lug
49.5mm
48.2mm
Lug Width
22mm
20mm
Water Resistance
100m
300m
Crystal & Dial
3 specsAR 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 specsCaliber
Miyota 9015
6R55
Power Reserve
42h
72h
Jewels
25
24
Complications
Date
None
Pricing
1 specsMSRP
$790
$1,100
Follow this matchup
Get a note when Gruppo Gamma Vanguard Steel Date vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Gruppo Gamma Vanguard Weathered DatevsSeiko Prospex SeaBorealis Watch Co. SintravsSeiko Prospex SeaBorealis Watch Co. JamantavsSeiko Prospex SeaSeiko Prospex SeavsZelos Great White 43Gruppo Gamma Vanguard Steel DatevsBorealis Watch Co. Estoril 300 GMTGruppo Gamma Vanguard Steel DatevsBorealis Watch Co. Caloura 300m