Side by side

Hamilton American Classic Boulton Small Second Quartz MvsYema Flygraf Bi-Compax French Air Force

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

Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

10 of 29 specs differ
Diameter
American Classic Boulton Small Second Quartz M24mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
American Classic Boulton Small Second Quartz M40h
Flygraf Bi-Compax French Air Force40h
Water Resistance
American Classic Boulton Small Second Quartz M50m
Flygraf Bi-Compax French Air Force100m
MSRP
American Classic Boulton Small Second Quartz M$795
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

7 specs
Category
Dress
Chronograph
Diameter
24mm
40mm
Thickness
8.64mm
9.5mm
Lug-to-Lug
46mm
Lug Width
16mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

1 specs
Caliber
980.163

Pricing

1 specs
MSRP
$795
$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.

Hamilton American Classic Boulton Small Second Quartz M

Owners widely praise the Hamilton American Classic Boulton Small Second Quartz M as a stunning and underrated dress watch, with one owner even preferring it to the Cartier Tank. Reviewers highlight the quartz movement's smooth winding, hacking seconds, and easy syncing, alongside appreciation for the absence of a date complication and the curved case design. The watch retails for $500-$600 USD. Overall, owners and reviewers rate the Hamilton American Classic Boulton Small Second Quartz M highly for its elegant Art Deco design and practical quartz movement features.

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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