Side by side

Hamilton American Classic Valiant AutovsSeiko 5 Sports SKX series

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 Valiant Auto

Owners widely praise the Hamilton American Classic Valiant Auto for its classic design elements, such as the sunburst dial and Roman numerals, noting its suitability for everyday elegance and wearability under a cuff. One owner highlights the 39.5mm size and applied indices as a "hidden gem," while another appreciates the clean, simple design with thin Roman numerals. The watch is also commended for its comfortable bracelet and attractive lance hands, with confirmation that the bracelet is indeed changeable. Some owners note the date window's placement at three o'clock is a point of contention, and one owner reports the watch runs at approximately +6 seconds per day after ten years of intermittent use. On balance, owners rate the Hamilton American Classic Valiant Auto highly for its elegant, classic design and comfortable wearability at its price point.

Seiko 5 Sports SKX series

Owners widely praise the Seiko 5 Sports SKX series for its iconic dive watch design, robust build, and excellent value, with many appreciating its timeless styling and tool-like character. The movement, while basic, is noted as offering hacking and hand-winding capabilities, and accuracy varies, with many owners reporting +/-5 to 10 seconds per day despite the movement's potential for +/-40 seconds. Some owners find the original SKX models heavier and bulkier than newer iterations, while others critique the lack of a screw-down crown and ISO rating on the newer Seiko 5 Sports SKX series, deeming it less of a serious tool watch. Overall, owners rate the Seiko 5 Sports SKX series highly for its enduring design and value proposition as a robust, everyday watch.

At a glance

13 of 29 specs differ
Diameter
American Classic Valiant Auto34mm
5 Sports SKX series28mm
Power Reserve
American Classic Valiant Auto80h
5 Sports SKX series40h
Water Resistance
American Classic Valiant Auto50m
5 Sports SKX series100m
MSRP
American Classic Valiant Auto$645
5 Sports SKX series$315

Full specifications

Case

6 specs
Category
Dress
Sport
Diameter
34mm
28mm
Thickness
10.58mm
11.2mm
Lug-to-Lug
0mm
33.1mm
Lug Width
16mm
14mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Silver
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
H-10
2R06
Power Reserve
80h
40h
Jewels
0
21

Pricing

1 specs
MSRP
$645
$315
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