Side by side

Nivada Grenchen AutochronvsYema Flygraf Bi-Compax French Air Force

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

Autochron
Nivada GrenchenAutochron
MSRP $2,495
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

15 of 29 specs differ
Diameter
Autochron38mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Autochron42h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Autochron200m
Flygraf Bi-Compax French Air Force100m
MSRP
Autochron$2,495
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

7 specs
Diameter
38mm
40mm
Thickness
38mm
9.5mm
Lug-to-Lug
46mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
200m
100m
Caseback
316L Steel Silver Color Caseback
Solid

Crystal & Dial

3 specs
Dial Color
Matt Blue Small texture +Super White Lum thick Printed 7506C Super Lum. Dots +White thick Printed logo
Black
Indices
Baton
Applied
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
ETA Valjoux 7750
Type
Automatic
Quartz
Beat Rate
28 vph
28,800 vph
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$2,495
$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.

Nivada Grenchen Autochron

Owners praise the Nivada Grenchen Autochron's dial, with one owner calling it amazing. The Autochron Mechaquartz is noted for its squared profile and the comfort of its expansion bracelet on smaller wrists.

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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