Side by side

Gruppo Gamma Vanguard SteelvsHamilton Khaki Navy Frogman Titanium 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 Navy Frogman Titanium Auto
HamiltonKhaki Navy Frogman Titanium Auto
MSRP $1,675

At a glance

12 of 29 specs differ
Diameter
Vanguard Steel42mm
Khaki Navy Frogman Titanium Auto46mm
Power Reserve
Vanguard Steel42h
Khaki Navy Frogman Titanium Auto80h
Water Resistance
Vanguard Steel100m
Khaki Navy Frogman Titanium Auto1,000m
MSRP
Vanguard Steel$790
Khaki Navy Frogman Titanium Auto$1,675

Full specifications

Case

6 specs
Category
Diver
Diameter
42mm
46mm
Thickness
12.6mm
15.95mm
Lug-to-Lug
49.5mm
46mm
Material
Stainless Steel
Titanium
Water Resistance
100m
1000m

Crystal & Dial

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

Movement

2 specs
Caliber
Miyota 9039
H-10
Power Reserve
42h
80h

Pricing

1 specs
MSRP
$790
$1,675

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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 Navy Frogman Titanium Auto

Owners widely praise the Hamilton Khaki Navy Frogman Titanium Auto for its durability, bold design, and titanium case construction, with some noting its comfortable wearability and precise +2 seconds per day accuracy. Reviewers highlight the 46mm model's 1000m water resistance and 80-hour power reserve from the H-10 movement. However, the large 46mm case size is frequently cited as a drawback for everyday wear, and some find the rubber strap stiff, the bezel grip challenging when wet, and the crown difficult to grip. One owner reports that the lume is not strong. On balance, owners and reviewers appreciate the Hamilton Khaki Navy Frogman Titanium Auto for its robust build and dive-ready specifications, with the primary caveat being its substantial case dimensions.

From video reviewers

The bezel action and dial are highlighted as strengths. The watch's size, specifically its thickness and lug-to-lug measurement, is a shared concern. Reviewers disagreed on the oversized crown lock, with one finding it a drawback and another not mentioning it.

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