Side by side

Gruppo Gamma Vanguard SteelvsHamilton Jazzmaster Thinline Auto

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

Vanguard Steel
Gruppo GammaVanguard Steel
MSRP $790
Jazzmaster Thinline Auto
HamiltonJazzmaster Thinline Auto
MSRP $1,145

At a glance

12 of 29 specs differ
Diameter
Vanguard Steel42mm
Jazzmaster Thinline Auto40mm
Power Reserve
Vanguard Steel42h
Jazzmaster Thinline Auto42h
Water Resistance
Vanguard Steel100m
Jazzmaster Thinline Auto50m
MSRP
Vanguard Steel$790
Jazzmaster Thinline Auto$1,145

Full specifications

Case

6 specs
Category
Dress
Diameter
42mm
40mm
Thickness
12.6mm
8.45mm
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
Beige
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Miyota 9039
2892-A2
Power Reserve
42h
42h

Pricing

1 specs
MSRP
$790
$1,145

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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 Jazzmaster Thinline Auto

Owners widely praise the Hamilton Jazzmaster Thinline Auto for its gorgeous, stunning, and captivating dials, particularly the champagne and burgundy variants, and its thin, comfortable profile, often noted at around 7mm to 8.4mm, making it ideal for wearability under shirt cuffs. The ETA 2892 movement is considered a strong value, though some owners report the rotor can be noisy and the winding feel unrefined, while others find the small crown difficult to manipulate. The absence of a second hand is polarizing, with some appreciating the simplicity and ease of setting, while others miss its presence. Overall, owners rate the Hamilton Jazzmaster Thinline Auto highly for its attractive, thin design and dial beauty at its price point.

From video reviewers

The slim case profile and affordable price point are consistently praised. Reviewers noted the absence of a second hand.

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