Side by side

Hamilton American Classic Boulton MechanicalvsZelos Comet 39

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

American Classic Boulton Mechanical
HamiltonAmerican Classic Boulton Mechanical
MSRP $1,075
Comet 39
ZelosComet 39
MSRP $2,499
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 Mechanical

Owners widely praise the Hamilton American Classic Boulton Mechanical for its smooth winding action and hacking seconds, with the absence of a date complication being a frequently noted positive. The watch is also lauded for its cool aesthetic and interesting company heritage. Overall, owners rate the Hamilton American Classic Boulton Mechanical highly for its user-friendly mechanical movement and distinctive style.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

At a glance

10 of 29 specs differ
Diameter
American Classic Boulton Mechanical34mm
Comet 3939mm
Power Reserve
American Classic Boulton Mechanical80h
Comet 3940h
Water Resistance
American Classic Boulton Mechanical50m
Comet 3950m
MSRP
American Classic Boulton Mechanical$1,075
Comet 39$2,499

Full specifications

Case

5 specs
Diameter
34mm
39mm
Thickness
11.2mm
7.6mm
Lug-to-Lug
46mm
39mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Tantalum LE

Movement

2 specs
Caliber
H-50 (ETA 2801-2 base)
ETA/Peseux 7001
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,075
$2,499
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