Side by side

Hamilton Jazzmaster Regulator CinemavsSeiko Prospex SPEEDTIMER

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 Regulator Cinema

The Hamilton Jazzmaster is widely praised for its value and refined design, with specific models highlighted for sophisticated skeletonization and minimalist aesthetics. Owners appreciate elegant dial work, such as the "spiky H" logo on the Skeleton or the open-heart design on other variants, and the slim profile of the Thinline Automatic is frequently noted. The Calibre H-10-S movement is recognized for its substantial 80-hour power reserve. However, opinions vary on the practicality of open-heart designs, with some finding them gimmicky or impacting legibility, particularly as wearers age. Accuracy figures reported by owners range from 2-3 seconds fast per day to less precise performance, and repair costs can be a consideration. Overall, owners and reviewers value the Hamilton Jazzmaster for its attractive design and accessible price point, with specific models offering unique aesthetic appeals.

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its attractive vintage-inspired design and compact 39mm size, with one owner finding the red dial unique and gorgeous. Reviewers and owners note the solar-powered quartz movement, with one owner considering $700 expensive for this specification and another wishing for a thinner case. The SPEEDTIMER is described as a sturdy and reliable everyday watch, though one owner questioned its resale value. Overall, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its stylish, compact design and solar functionality, despite some finding the price point and case thickness slightly high.

At a glance

13 of 29 specs differ
Diameter
Jazzmaster Regulator Cinema42mm
Prospex SPEEDTIMER42.5mm
Power Reserve
Jazzmaster Regulator Cinema
Prospex SPEEDTIMER45h
Water Resistance
Jazzmaster Regulator Cinema50m
Prospex SPEEDTIMER100m
MSRP
Jazzmaster Regulator Cinema$1,475
Prospex SPEEDTIMER$3,000

Full specifications

Case

5 specs
Diameter
42mm
42.5mm
Thickness
12.83mm
15.1mm
Lug-to-Lug
0mm
50mm
Lug Width
22mm
20mm
Water Resistance
50m
100m

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-12
8R46
Power Reserve
0h
45h
Jewels
0
34

Pricing

1 specs
MSRP
$1,475
$3,000
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