Side by side

Seiko Prospex RotocallvsYema Flygraf Bi-Compax French Air Force

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

Prospex Rotocall
SeikoProspex Rotocall
MSRP $550
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

8 of 29 specs differ
Diameter
Prospex Rotocall37mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Prospex Rotocall40h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Prospex Rotocall100m
Flygraf Bi-Compax French Air Force100m
MSRP
Prospex Rotocall$550
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

5 specs
Category
Sport
Chronograph
Diameter
37mm
40mm
Thickness
10.6mm
9.5mm
Lug-to-Lug
43.5mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Crystal
Hardlex
Sapphire

Movement

1 specs
Caliber
A824

Pricing

1 specs
MSRP
$550
$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.

Seiko Prospex Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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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