Side by side

Dryden Chrono Diver Series 1vsYema Flygraf Bi-Compax French Air Force

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

Chrono Diver Series 1
DrydenChrono Diver Series 1
MSRP $349
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

9 of 29 specs differ
Diameter
Chrono Diver Series 142mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Chrono Diver Series 140h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Chrono Diver Series 1101m
Flygraf Bi-Compax French Air Force100m
MSRP
Chrono Diver Series 1$349
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

6 specs
Diameter
42mm
40mm
Thickness
13.5mm
9.5mm
Lug-to-Lug
49mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
101m
100m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Steel
Black

Pricing

1 specs
MSRP
$349
$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.

Dryden Chrono Diver Series 1

The Dryden Chrono Diver Series 1 is a 42mm mechaquartz chronograph featuring a dual-curved sapphire crystal and 100m water resistance. Owners note the VK63 movement's characteristic chronograph hand not resetting perfectly to zero, a trait present on this specific watch. The case exhibits polished chamfers on the upper lugs, and it utilizes Swiss Superluminova BGW9. On balance, owners appreciate the classic case shape and dial design of the Dryden Chrono Diver Series 1 at its price point, despite the mechaquartz movement's known reset behavior.

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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