Side by side

Seiko AlpinistvsYema Flygraf Bi-Compax French Air Force

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

Alpinist
SeikoAlpinist
MSRP $750
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

13 of 29 specs differ
Diameter
Alpinist39.5mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Alpinist70h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Alpinist200m
Flygraf Bi-Compax French Air Force100m
MSRP
Alpinist$750
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

6 specs
Category
Field
Chronograph
Diameter
39.5mm
40mm
Thickness
13.2mm
9.5mm
Lug-to-Lug
46.4mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
6R35
Type
Automatic
Quartz
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$750
$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 Alpinist

Owners widely praise the Seiko Prospex Land Mechanical for its durability, accuracy, and value, with many appreciating its versatile style and useful day-date complication. Some owners highlight the 70-hour power reserve and 20 bar water resistance as significant benefits. However, opinions are divided on its size and thickness, with some finding it too large and heavy for a field watch, while others consider it a perfect or comfortable fit, especially at 38mm. There is also disagreement regarding the crystal type, with some criticizing the Hardlex while others appreciate the sapphire. Overall, owners rate the Seiko Prospex Land Mechanical highly for its robust performance and good value, despite differing views on its dimensions.

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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