Side by side

Hamilton Jazzmaster Open Heart AutovsYema Navygraf Marine Nationale Quartz

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 Quartz
YemaNavygraf Marine Nationale Quartz
MSRP $499

At a glance

12 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Navygraf Marine Nationale Quartz39mm
Power Reserve
Jazzmaster Open Heart Auto80h
Navygraf Marine Nationale Quartz40h
Water Resistance
Jazzmaster Open Heart Auto50m
Navygraf Marine Nationale Quartz100m
MSRP
Jazzmaster Open Heart Auto$2,695
Navygraf Marine Nationale Quartz$499

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
36mm
39mm
Thickness
10mm
11mm
Lug-to-Lug
46mm
Lug Width
18mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Mother of pearl
Standard

Movement

3 specs
Caliber
H-10
Type
Automatic
Quartz
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$499

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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 Quartz

Owners praise the Yema Navygraf Marine Nationale Quartz for its well-made case, clean legible dial, and comfortable 39mm size, with one noting its thin profile for 300m water resistance. Accuracy figures vary, with one owner reporting +6 seconds per day and another seeing it keep within COSC time. Minor criticisms include a steel bracelet with a slight rattle and sharp edges, bent bracelet pins, and in one instance, crooked dial printing. On balance, owners find the Yema Navygraf Marine Nationale Quartz offers good value and wearability, with its French design and thinner case being key highlights.

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