Side by side

Hamilton Jazzmaster Open Heart AutovsYema Navygraf Marine Nationale GMT Paris

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
Navygraf Marine Nationale GMT Paris
YemaNavygraf Marine Nationale GMT Paris
MSRP $944

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Navygraf Marine Nationale GMT Paris39mm
Power Reserve
Jazzmaster Open Heart Auto80h
Navygraf Marine Nationale GMT Paris40h
Water Resistance
Jazzmaster Open Heart Auto50m
Navygraf Marine Nationale GMT Paris100m
MSRP
Jazzmaster Open Heart Auto$2,695
Navygraf Marine Nationale GMT Paris$944

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
36mm
39mm
Thickness
10mm
Lug-to-Lug
46mm
Lug Width
18mm
20mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Mother of pearl
Paris

Movement

2 specs
Caliber
H-10
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$944

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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 Navygraf Marine Nationale GMT Paris

Owners widely praise the Yema Navygraf Marine Nationale GMT Paris as a standout design within the brand's recent offerings and a compelling alternative to higher-priced models, with one owner reporting zero issues. The steel version is a 39mm tool watch with pencil-shaped hands and white indices for legibility. It features Yema's YEMA2000 movement, offering ±10 seconds per day accuracy and a 42-hour power reserve, with 300-meter water resistance. Overall, owners rate the Yema Navygraf Marine Nationale GMT Paris highly for its appealing design and solid performance at its price point.

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