Side by side

Hamilton Jazzmaster Open Heart AutovsVenezianico Nereide Aureo 39

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
Nereide Aureo 39
VenezianicoNereide Aureo 39
MSRP $1,000

At a glance

12 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Nereide Aureo 3939mm
Power Reserve
Jazzmaster Open Heart Auto80h
Nereide Aureo 3940h
Water Resistance
Jazzmaster Open Heart Auto50m
Nereide Aureo 39200m
MSRP
Jazzmaster Open Heart Auto$2,695
Nereide Aureo 39$1,000

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
36mm
39mm
Thickness
10mm
10.5mm
Lug-to-Lug
46mm
45.5mm
Lug Width
18mm
20mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Mother of pearl
Black
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
H-10
Miyota 9039
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$1,000

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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.

Venezianico Nereide Aureo 39

The Venezianico Nereide is praised for its handsome design and good value, featuring a tungsten bezel insert and a sparkling aventurine dial. Owners note the optical glass bezel offers less glare than ceramic. The stock rubber strap is described as stiff, and the Canova bracelet lacks a half-link for fine adjustment. Overall, owners and reviewers find the Venezianico Nereide offers good case finishing for its price point, making it a compelling entry-level mechanical diver-style watch.

From video reviewers

The 24k gold dial is a standout feature. The lume brightness is a potential drawback. Reviewers disagree on whether the unique design and features justify the price point.

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