Side by side

Hamilton Jazzmaster Open Heart AutovsLorier Hyperion SII

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
Hyperion SII
LorierHyperion SII
MSRP $699

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
Hyperion SII39mm
Power Reserve
Jazzmaster Open Heart Auto80h
Hyperion SII40h
Water Resistance
Jazzmaster Open Heart Auto50m
Hyperion SII200m
MSRP
Jazzmaster Open Heart Auto$2,695
Hyperion SII$699

Full specifications

Case

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

Crystal & Dial

1 specs
Dial Color
Mother of pearl
Blue

Movement

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

Pricing

1 specs
MSRP
$2,695
$699

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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.

Lorier Hyperion SII

Owners widely praise the Lorier Hyperion SII for its vintage aesthetic, glossy black dial, and tasteful text. One owner notes the Miyota 9075 movement and calls it the best GMT under $800. Criticisms include a small GMT hand that is difficult to spot, and one user found the winding action not smooth with significant crown resistance. Overall, owners rate the Lorier Hyperion SII highly for its vintage aesthetic and value.

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