Side by side

Straton Straton Syncro Sports day/date AutomaticvsYema Flygraf Bi-Compax French Air Force

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

Straton Syncro Sports day/date Automatic
StratonStraton Syncro Sports day/date Automatic
MSRP $499
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

15 of 29 specs differ
Diameter
Straton Syncro Sports day/date Automatic40mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Straton Syncro Sports day/date Automatic
Flygraf Bi-Compax French Air Force40h
Water Resistance
Straton Syncro Sports day/date Automatic200m
Flygraf Bi-Compax French Air Force100m
MSRP
Straton Syncro Sports day/date Automatic$499
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

5 specs
Thickness
13mm
9.5mm
Lug-to-Lug
49mm
Finish
Brushed and polished
Water Resistance
200m
100m
Caseback
Solid

Crystal & Dial

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

Movement

5 specs
Caliber
NH36
Type
Automatic
Quartz
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25

Pricing

1 specs
MSRP
$499
$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 Syncro Sports day/date Automatic

Owners widely praise the Straton Syncro's exceptional finishing, retro design, and well-balanced dial, with one owner calling it Straton's best work. The fully-lumed dial is a significant draw for legibility, though one forum user notes the white dial's lume can cast a cool tone. Criticisms include a busy bezel design with difficult-to-read markings, applied numerals that reduce legibility, and a polished Milanese bracelet that contrasts with the brushed case. The NH36 movement is considered reliable but not highly accurate, and the 40mm case wears larger than its dimensions. The watch is approximately 15mm thick, which may present wearability issues with long sleeves. On balance, owners and reviewers highlight the Straton Syncro's impressive finishing and distinctive retro design as its strongest attributes.

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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