Side by side

Hamilton American Classic Spirit of Liberty Auto ChronovsSeiko Prospex SPEEDTIMER Mechanical

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

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 Spirit of Liberty Auto Chrono

Owners widely praise the Hamilton American Classic Spirit of Liberty Auto Chrono for its impressive craftsmanship, details, and overall finish, noting sharp edges on the mixed brushed and polished lugs that give it a premium look and a refined yet bold presence. The watch offers an improved 60-hour power reserve and increased precision. However, its pushers are noted as being chunky. On balance, owners rate the Hamilton American Classic Spirit of Liberty Auto Chrono highly for its premium finishing and refined presence on the wrist.

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

At a glance

13 of 29 specs differ
Diameter
American Classic Spirit of Liberty Auto Chrono42mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
American Classic Spirit of Liberty Auto Chrono
Prospex SPEEDTIMER Mechanical72h
Water Resistance
American Classic Spirit of Liberty Auto Chrono50m
Prospex SPEEDTIMER Mechanical200m
MSRP
American Classic Spirit of Liberty Auto Chrono$2,225
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

5 specs
Diameter
42mm
39.5mm
Thickness
14.75mm
12mm
Lug-to-Lug
0mm
44.5mm
Lug Width
22mm
20mm
Water Resistance
50m
200m

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
H-21
6R55
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$2,225
$995
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