Side by side

Hamilton Jazzmaster Open Heart AutovsVenezianico Nereide Avventurina 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 Avventurina 39
VenezianicoNereide Avventurina 39
MSRP $895

At a glance

12 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Nereide Avventurina 3939mm
Power Reserve
Jazzmaster Open Heart Auto80h
Nereide Avventurina 3940h
Water Resistance
Jazzmaster Open Heart Auto50m
Nereide Avventurina 39200m
MSRP
Jazzmaster Open Heart Auto$2,695
Nereide Avventurina 39$895

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
36mm
39mm
Thickness
10mm
10.6mm
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
$895

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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 Avventurina 39

Venezianico Nereide owners and reviewers praise its attractive sunburst blue dial and sapphire crystal, with one reviewer finding its dial superior to similarly priced alternatives. The watch is considered good value at $845 USD, featuring a handsome aventurine dial and tungsten bezel insert that add flair to its design, though the default rubber strap is noted as stiff. The NH35A movement is questioned by some, and the brand's customer service reputation is a concern. Overall, owners and reviewers rate Venezianico Nereide highly for its striking dial and overall value proposition.

From video reviewers

The unique aventurine dial is a significant strength. The brand's newness and limited recognition is a drawback.

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