Side by side

Gruppo Gamma Vanguard SteelvsYema Flygraf Bi-Compax French Air Force

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

Vanguard Steel
Gruppo GammaVanguard Steel
MSRP $790
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

13 of 29 specs differ
Diameter
Vanguard Steel42mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Vanguard Steel42h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Vanguard Steel100m
Flygraf Bi-Compax French Air Force100m
MSRP
Vanguard Steel$790
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

6 specs
Category
Chronograph
Diameter
42mm
40mm
Thickness
12.6mm
9.5mm
Lug-to-Lug
49.5mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

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

Movement

3 specs
Caliber
Miyota 9039
Type
Automatic
Quartz
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$790
$490

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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.

Yema Flygraf Bi-Compax French Air Force

Owners widely praise the Yema Flygraf Bi-Compax French Air Force for its attractive, toolish aesthetic and excellent quality for the price, noting the legible Type A dial and 40mm titanium case. However, the acrylic crystal scratches easily, and the titanium case is prone to marking. The mecha-quartz movement's chrono timer sweeps rather than ticks, and one owner questions the purpose of the oversized crown. The in-house Yema 2000 movement is accurate at +/- 10 seconds per day but has a 42-hour power reserve, and some owners express concerns regarding Yema's past quality control and customer service. On balance, owners rate the Yema Flygraf Bi-Compax French Air Force highly for its attractive design and value, despite concerns about material durability and brand service history.

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