Side by side

Hamilton Jazzmaster Performer AutovsSeiko King Seiko KSK

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 Jazzmaster Performer Auto

Owners praise the Hamilton Jazzmaster Performer Auto for its stylish looks, clean case finishing, and 80-hour power reserve, making it a good option for a first Swiss watch. Some owners note the 34mm size might be small and suggest it is a bit pricey. One owner finds the flatter crystal reduces light reflection and perceived chunkiness, and it sits well on smaller wrists due to a reasonable lug-to-lug distance. Overall, owners rate the Hamilton Jazzmaster Performer Auto highly for its blend of brand reputation, aesthetics, and practical features at its price point.

Seiko King Seiko KSK

Owners and reviewers widely praise the King Seiko KSK for its exceptional dial and case finishing, often compared to higher-end brands, and its slim, retro design. The use of the Calibre 6L35 movement in some variants is seen as a significant upgrade, contributing to a refined feel, while others note the bracelet is unusually nice and the case offers a mix of brushed and polished finishes with sharp angles. However, some owners question the value proposition, citing misaligned screws and clasp components on their examples, and the standard 6R movement in some models is criticized as a disappointment for the price point. Accuracy figures range from +15/-10 seconds per day to +5 to +7 seconds per day, and water resistance is rated at 5 BAR or 50 meters. Overall, owners and reviewers find the King Seiko KSK to be a beautiful and classy watch with fantastic finishing, though some are divided on its value and movement choice at its price point.

At a glance

12 of 29 specs differ
Diameter
Jazzmaster Performer Auto34mm
King Seiko KSK38.6mm
Power Reserve
Jazzmaster Performer Auto80h
King Seiko KSK45h
Water Resistance
Jazzmaster Performer Auto100m
King Seiko KSK50m
MSRP
Jazzmaster Performer Auto$1,245
King Seiko KSK$3,300

Full specifications

Case

5 specs
Diameter
34mm
38.6mm
Thickness
0mm
10.7mm
Lug-to-Lug
0mm
45.8mm
Lug Width
18mm
19mm
Water Resistance
100m
50m

Crystal & Dial

3 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue

Movement

3 specs
Caliber
H-10
Seiko 6L35
Power Reserve
80h
45h
Jewels
0
26

Pricing

1 specs
MSRP
$1,245
$3,300
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