Side by side

Hamilton Jazzmaster Open Heart AutovsYema Granvelle CMM.29

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
Granvelle CMM.29
YemaGranvelle CMM.29
MSRP $1,913

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Granvelle CMM.2939mm
Power Reserve
Jazzmaster Open Heart Auto80h
Granvelle CMM.2940h
Water Resistance
Jazzmaster Open Heart Auto50m
Granvelle CMM.2950m
MSRP
Jazzmaster Open Heart Auto$2,695
Granvelle CMM.29$1,913

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
36mm
39mm
Thickness
10mm
8.6mm
Lug-to-Lug
46mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Mother of pearl
Black

Movement

2 specs
Caliber
H-10
Yema CMM.29
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$1,913

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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.

Yema Granvelle CMM.29

Owners praise the Yema Granvelle CMM.29's gorgeous dial, noting its guilloché pattern and carved hour indices that catch the light. One owner describes the movement as a "feast for the eyes" but finds the watch frustrating at work due to its lack of a specific function. On balance, owners appreciate the Yema Granvelle CMM.29 for its visually striking dial and movement finishing, with some finding its utility limited in certain professional contexts.

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