Side by side

Gruppo Gamma Vanguard SteelvsHamilton Khaki Aviation Day Date Auto

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.

Hamilton Khaki Aviation Day Date Auto

Owners and reviewers widely praise the Hamilton Khaki Aviation Day Date Auto for its handsome, legible dial with raised indices and day/date complications, and its versatile, modern pilot watch design. The fully brushed case and good lume are noted strengths, with one owner finding it wears comfortably on a NATO strap. The H-10 caliber offers an 80-hour power reserve, though its decoration and regulation are less refined. Some find the 42mm size large and the skeletonized hour hand tip visually unappealing, while others note the AR coating is decent but not exceptional. Overall, owners and reviewers rate the Hamilton Khaki Aviation Day Date Auto highly for its practical design and value at its price point.

At a glance

10 of 29 specs differ
Diameter
Vanguard Steel42mm
Khaki Aviation Day Date Auto42mm
Power Reserve
Vanguard Steel42h
Khaki Aviation Day Date Auto80h
Water Resistance
Vanguard Steel100m
Khaki Aviation Day Date Auto100m
MSRP
Vanguard Steel$790
Khaki Aviation Day Date Auto$1,125

Full specifications

Case

4 specs
Category
Pilot
Thickness
12.6mm
12.15mm
Lug-to-Lug
49.5mm
0mm
Lug Width
22mm
20mm

Crystal & Dial

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

Movement

2 specs
Caliber
Miyota 9039
H-40 (ETA 2834-2 base)
Power Reserve
42h
80h

Pricing

1 specs
MSRP
$790
$1,125
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