Side by side

Gruppo Gamma Vanguard SteelvsSeiko 5 Sports Field series

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Gruppo Gamma Vanguard Steel

The Gruppo Gamma Vanguard Steel is praised for its aged steel case and cream sandwich dial. However, some owners dislike the distorted sapphire crystal and the absence of minute markers, with one noting difficulty in replacing the crystal due to hand fitment. The watch features a Miyota 9039 movement with a 42-hour power reserve and an accuracy range of -10 to +30 seconds per day, and is offered with two strap options. On balance, owners value the Gruppo Gamma Vanguard Steel for its distinctive aged aesthetic and dial design, despite some reservations about the crystal.

From video reviewers

Movement accuracy is a notable strength, with one reviewer noting a -1.8 second per day deviation after initial testing. A weakness is the substantial price hike for the re-release model, which raises questions about whether the upgrades justify the cost. Reviewers disagree on the watch's originality, with one calling it "decidedly derivative" and the other not mentioning this aspect.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its value, offering an accessible explorer-style watch with a GMT complication and excellent legibility thanks to LumiBrite on the dial and bezel. The watches feature a 41mm stainless steel case, 100m water resistance, and are powered by either the 4R36 or 4R34 movement, both with a 41-hour power reserve. One reviewer notes the inclusion of a compass bezel with a lumed pearl and fully lumed Arabic numerals on the dial for the non-GMT models. Overall, reviewers consider the Seiko 5 Sports Field GMT models good value under 500 euros.

At a glance

14 of 29 specs differ
Diameter
Vanguard Steel42mm
5 Sports Field series39.4mm
Power Reserve
Vanguard Steel42h
5 Sports Field series41h
Water Resistance
Vanguard Steel100m
5 Sports Field series100m
MSRP
Vanguard Steel$790
5 Sports Field series$315

Full specifications

Case

5 specs
Category
Sport
Diameter
42mm
39.4mm
Thickness
12.6mm
13.2mm
Lug-to-Lug
49.5mm
48.1mm
Lug Width
22mm
20mm

Crystal & Dial

5 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Curved
AR Coating
Yes
Dial Color
Forged Carbon
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9039
Seiko 4R36
Power Reserve
42h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$790
$315
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