Side by side

Hamilton Jazzmaster Open Heart AutovsPagani Design PD-1644 Rainbow

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 Open Heart Auto

The Hamilton Jazzmaster Open Heart Auto is noted for its dressy yet versatile design, featuring striking gradient dials and intricately shaped cutouts that reveal the H-10 movement. It boasts an 80-hour power reserve and Nivachron hairspring. The watch is available in 36mm, 40mm, or 42mm stainless steel cases. On balance, the Hamilton Jazzmaster Open Heart Auto is appreciated for its visually engaging dial and movement display at its price point.

From video reviewers

The smoked dial's precision cutouts offer a captivating view of the automatic movement. Legibility is compromised by the open-heart design.

Pagani Design PD-1644 Rainbow

Pagani Design PD-1644 Rainbow owners widely praise its "wow factor" and "super fun" aesthetic, with one owner calling its bracelet "one of the best I have," and many agree it feels and looks more expensive than its $50 price. Some owners find the dial difficult to read due to reflections, and a few dislike the "fake meteorite" dial. One owner notes sharp clasp edges and difficult micro-adjustments on the Jubilee bracelet, though it is otherwise comfortable. The PD-1644 features a shield logo on the case back and a less rounded case shape compared to other models. Overall, owners rate the Pagani Design PD-1644 Rainbow highly for its impressive aesthetic and value at the price point.

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
PD-1644 Rainbow40mm
Power Reserve
Jazzmaster Open Heart Auto80h
PD-1644 Rainbow
Water Resistance
Jazzmaster Open Heart Auto50m
PD-1644 Rainbow100m
MSRP
Jazzmaster Open Heart Auto$2,695
PD-1644 Rainbow$128

Full specifications

Case

4 specs
Diameter
36mm
40mm
Thickness
10mm
12mm
Lug Width
18mm
20mm
Water Resistance
50m
100m

Crystal & Dial

2 specs
AR Coating
Yes
Dial Color
Mother of pearl

Movement

3 specs
Caliber
H-10
Seiko VK63
Type
Automatic
Quartz
Power Reserve
80h
0h

Pricing

1 specs
MSRP
$2,695
$128
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