Side by side

Hamilton Jazzmaster Open Heart AutovsSpinnaker Croft

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
Croft
SpinnakerCroft
MSRP $219

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Croft40mm
Power Reserve
Jazzmaster Open Heart Auto80h
Croft40h
Water Resistance
Jazzmaster Open Heart Auto50m
Croft150m
MSRP
Jazzmaster Open Heart Auto$2,695
Croft$219

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
36mm
40mm
Thickness
10mm
14mm
Lug-to-Lug
46mm
47mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
150m

Crystal & Dial

1 specs
Dial Color
Mother of pearl
Elemental

Movement

2 specs
Caliber
H-10
SII NH35A
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$219

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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.

Spinnaker Croft

Owners and reviewers widely praise the Spinnaker Croft for its vibrant dial colors, chunky hands and bezel, and overall value, with one owner noting the Miyota 8218 movement and cyclops as appreciated features. Reviewers flag the bracelet and clasp as budget-friendly limitations, citing friction-fit pins, sharp edges, and a stiff security lock. On balance, owners and reviewers rate the Spinnaker Croft highly for its accessible skeletonized dive watch aesthetic and appealing design at its price point.

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