Side by side

Gruppo Gamma Vanguard SteelvsHamilton Khaki Field King Auto

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

Vanguard Steel
Gruppo GammaVanguard Steel
MSRP $790
Khaki Field King Auto
HamiltonKhaki Field King Auto
MSRP $845

At a glance

12 of 29 specs differ
Diameter
Vanguard Steel42mm
Khaki Field King Auto40mm
Power Reserve
Vanguard Steel42h
Khaki Field King Auto80h
Water Resistance
Vanguard Steel100m
Khaki Field King Auto50m
MSRP
Vanguard Steel$790
Khaki Field King Auto$845

Full specifications

Case

6 specs
Category
Field
Diameter
42mm
40mm
Thickness
12.6mm
11.15mm
Lug-to-Lug
49.5mm
46mm
Lug Width
22mm
20mm
Water Resistance
100m
50m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Forged Carbon
Black
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Miyota 9039
H-40
Power Reserve
42h
80h

Pricing

1 specs
MSRP
$790
$845

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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.

Hamilton Khaki Field King Auto

Owners and reviewers widely praise the Hamilton Khaki Field King Auto for its 80-hour power reserve, hacking capability, and snappy day-date function, with accuracy figures ranging from +1 to +5 seconds per day. The watch is also noted for its legibility, attractive dial options, and 100m water resistance. Some owners find the stock strap stiff and the case finishing lacks fine detail, while others mention the lume is decent but fades significantly after about 30 minutes. The lack of an anti-reflective coating on the sapphire crystal is a recurring point, and the crown does not feel like it fully pushes in for some. On balance, owners and reviewers rate the Hamilton Khaki Field King Auto highly for its robust feature set and value, particularly its day-date complication and extended power reserve.

From video reviewers

The 80-hour power reserve from the H-40 movement is a significant advantage. The lack of AR coating on the sapphire crystal hinders legibility in direct light, and the 50-meter water resistance is limited for a field watch. Reviewers disagreed on the watch case geometry and ergonomics, with one noting it contributed to buyer's remorse and another suggesting it should offer a comfortable fit.

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