Side by side

Hamilton Jazzmaster Open Heart AutovsMarloe Watch Company Motorsport 105

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 105
Marloe Watch CompanyMotorsport 105
MSRP $380

At a glance

13 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Motorsport 10541mm
Power Reserve
Jazzmaster Open Heart Auto80h
Motorsport 10540h
Water Resistance
Jazzmaster Open Heart Auto50m
Motorsport 105100m
MSRP
Jazzmaster Open Heart Auto$2,695
Motorsport 105$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 105

Owners widely praise the Marloe Watch Company Motorsport 105 for its creative dial design, good contrast, and British Racing Green color, with some finding it wears smaller than its 41mm size. One owner appreciates its lack of a date window and comfortable wear on a 6.5” wrist. However, some users note Marloe's 20mm lug width can make models appear top-heavy, and a significant price increase has been observed across the brand's offerings. Overall, owners rate the Marloe Watch Company Motorsport 105 highly for its distinctive dial design and comfortable wearability.

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