Side by side

Straton Straton Curve Chrono MKIIvsYema Flygraf Bi-Compax French Air Force

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

Straton Curve Chrono MKII
StratonStraton Curve Chrono MKII
MSRP $1,099
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

15 of 29 specs differ
Diameter
Straton Curve Chrono MKII42mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Straton Curve Chrono MKII
Flygraf Bi-Compax French Air Force40h
Water Resistance
Straton Curve Chrono MKII100m
Flygraf Bi-Compax French Air Force100m
MSRP
Straton Curve Chrono MKII$1,099
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

6 specs
Diameter
42mm
40mm
Thickness
13.9mm
9.5mm
Lug-to-Lug
47.4mm
Lug Width
22mm
20mm
Finish
Brushed and polished
Caseback
Stamped Design with Wheel
Solid

Crystal & Dial

4 specs
Crystal Shape
Domed
Flat
AR Coating
Yes
Inner
Dial Color
Black
Indices
Applied

Movement

4 specs
Caliber
NE86
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25

Pricing

1 specs
MSRP
$1,099
$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.

Straton Curve Chrono MKII

The watch offers a retro motorsport aesthetic with a quality finish and well-chosen movements at an affordable price. Reviewers did not agree on any specific weaknesses.

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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