Side by side

Tudor Black Bay Chrono S&GvsYema Flygraf Bi-Compax French Air Force

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

Black Bay Chrono S&G
TudorBlack Bay Chrono S&G
MSRP $8,525
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

20 of 29 specs differ
Diameter
Black Bay Chrono S&G41mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Black Bay Chrono S&G70h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Black Bay Chrono S&G200m
Flygraf Bi-Compax French Air Force100m
MSRP
Black Bay Chrono S&G$8,525
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

8 specs
Diameter
41mm
40mm
Thickness
14.4mm
9.5mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Polished + Satin
Brushed and polished
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied

Movement

8 specs
Caliber
MT5813
Type
Automatic
Quartz
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Chronograph
None

Pricing

1 specs
MSRP
$8,525
$490

Follow this matchup

Get a note when Tudor Black Bay Chrono S&G vs Yema Flygraf Bi-Compax French Air Force gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Tudor Black Bay Chrono S&G

The Tudor Black Bay Chrono S&G is widely praised for its bold, vintage-inspired two-tone design, solid modern build, and attractive price point. Owners and reviewers highlight its well-made bracelet, T-fit clasp, and compelling styling, with some noting its unique, muted gold tone that is less flashy than other gold watches. One owner reported excellent timing accuracy of +/- 1 second per day. The Tudor Black Bay Chrono S&G utilizes the MT5813 movement, a modified Breitling B01, offering a 70-hour power reserve. However, some find the 45-minute chronograph register less practical than a 60-minute counter, and the use of gold capping on the bracelet and bezel is a point of contention for some, with one user also noting faux bracelet rivets as a detractor. The watch's thickness and lug structure are also cited as potential drawbacks for wearability 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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.