Side by side

Seiko Prospex SeavsYema Flygraf Bi-Compax French Air Force

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

Prospex Sea
SeikoProspex Sea
MSRP $595
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

13 of 29 specs differ
Diameter
Prospex Sea41.7mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Prospex Sea41h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Prospex Sea200m
Flygraf Bi-Compax French Air Force100m
MSRP
Prospex Sea$595
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.7mm
40mm
Thickness
12.3mm
9.5mm
Lug-to-Lug
49.5mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Hardlex
Sapphire
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

4 specs
Caliber
4R35
Type
Automatic
Quartz
Power Reserve
41h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$595
$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 Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

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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