Side by side

Hamilton Jazzmaster Open Heart AutovsLongines CONQUEST

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
CONQUEST
LonginesCONQUEST
MSRP $4,750

At a glance

9 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
CONQUEST34mm
Power Reserve
Jazzmaster Open Heart Auto80h
CONQUEST40h
Water Resistance
Jazzmaster Open Heart Auto50m
CONQUEST100m
MSRP
Jazzmaster Open Heart Auto$2,695
CONQUEST$4,750

Full specifications

Case

6 specs
Category
Chronograph
Diameter
36mm
34mm
Thickness
10mm
10.9mm
Lug-to-Lug
46mm
41.1mm
Lug Width
18mm
17mm
Water Resistance
50m
100m

Movement

2 specs
Caliber
H-10
L888.5
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$4,750

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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.

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its versatile, aesthetically pleasing design, comfortable wearability, and excellent value, with many highlighting its high-quality finishing and smooth winding action. Reviewers and owners alike note the watch's well-wearing size and blend of vintage and modern design elements. Some owners report the polished surfaces can be prone to scratches, and multiple sources flag the bracelet's lack of micro-adjustment as a significant drawback impacting fit. Lume quality is also a recurring point of criticism, with one reviewer noting only the black dial version appears to have lumed hands. Overall, owners and reviewers consider the Longines CONQUEST a highly versatile and well-built everyday sports watch offering significant value.

From video reviewers

The elegant gold dial is a notable aspect of the Longines CONQUEST. The quartz movement may be a drawback for collectors who prefer mechanical movements. Reviewers disagree on the standout feature, with one highlighting the gold dial and the other the Blue Sunburst dial.

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