Side by side

Hamilton Jazzmaster Open Heart AutovsMarloe Watch Company Motorsport 25

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Jazzmaster Open Heart Auto
HamiltonJazzmaster Open Heart Auto
MSRP $2,695
Motorsport 25
Marloe Watch CompanyMotorsport 25
MSRP $380

At a glance

13 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Motorsport 2541mm
Power Reserve
Jazzmaster Open Heart Auto80h
Motorsport 2540h
Water Resistance
Jazzmaster Open Heart Auto50m
Motorsport 25100m
MSRP
Jazzmaster Open Heart Auto$2,695
Motorsport 25$380

Full specifications

Case

6 specs
Category
Chronograph
Sport
Diameter
36mm
41mm
Thickness
10mm
11.1mm
Lug-to-Lug
46mm
Lug Width
18mm
20mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Mother of pearl
Lume
None
Natulite

Movement

3 specs
Caliber
H-10
Miyota 8N24
Power Reserve
80h
40h
Jewels
25
21

Pricing

1 specs
MSRP
$2,695
$380

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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.

Marloe Watch Company Motorsport 25

Owners praise the Marloe Watch Company Motorsport 25 for its F1-inspired design, excellent finishing, and great lume, noting a fantastic unboxing experience and value at around £399/$800. One owner dislikes the nylon strap for obscuring the display caseback and finds the polished case prone to fingerprints, while rating the Miyota 8N24 movement a 3/5. Overall, owners rate the Marloe Watch Company Motorsport 25 highly for its design and finishing at the price point.

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