Side by side

Yema Flygraf Bi-Compax French Air ForcevsZelos Helica Moonphase

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

Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

8 of 29 specs differ
Diameter
Flygraf Bi-Compax French Air Force40mm
Helica Moonphase39mm
Power Reserve
Flygraf Bi-Compax French Air Force40h
Helica Moonphase40h
Water Resistance
Flygraf Bi-Compax French Air Force100m
Helica Moonphase100m
MSRP
Flygraf Bi-Compax French Air Force$490
Helica Moonphase$1,049

Full specifications

Case

4 specs
Category
Chronograph
Moonphase
Diameter
40mm
39mm
Thickness
9.5mm
10mm
Lug-to-Lug
39mm

Crystal & Dial

1 specs
Dial Color
Black
Meteorite

Movement

2 specs
Caliber
Sellita SW288 Moonphase
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$490
$1,049

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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.

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.

Zelos Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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