Side by side

Hamilton Jazzmaster Regulator CinemavsHalios Seaforth IV

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.

Halios Seaforth IV

Owners widely praise the Halios Sunburst Blue for its perfect 40mm size, stunning sunburst dial, and excellent lume, with one owner calling it Halios's best effort and a potential "Omega AT killer." The ETA 2824 movement is noted as running smoothly, and the watch is considered a great value with strong resale. Some owners desire larger sizes or different dial colors, and one reviewer found the Sinn 556i more versatile. The sapphire bezel is described as tall and flat, which is a point of contention for some. Overall, owners rate the Halios Sunburst Blue highly for its design, size, and value.

From video reviewers

The sunburst blue dial is a standout feature. Limited water resistance is a shared concern.

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Regulator Cinema42mm
Seaforth IV40mm
Power Reserve
Jazzmaster Regulator Cinema40h
Seaforth IV40h
Water Resistance
Jazzmaster Regulator Cinema50m
Seaforth IV200m
MSRP
Jazzmaster Regulator Cinema$1,475
Seaforth IV$765

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
40mm
Thickness
12.83mm
12.4mm
Lug-to-Lug
46mm
46.5mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Sapphire (double-domed)
Dial Color
Black
Blue

Movement

1 specs
Caliber
H-12
Sellita SW200-1

Pricing

1 specs
MSRP
$1,475
$765
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