Side by side

Geckota GT Racing ChronographvsHamilton Jazzmaster Open Heart Auto

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

GT Racing Chronograph
GeckotaGT Racing Chronograph
MSRP $399
Jazzmaster Open Heart Auto
HamiltonJazzmaster Open Heart Auto
MSRP $2,695

At a glance

10 of 29 specs differ
Diameter
GT Racing Chronograph40mm
Jazzmaster Open Heart Auto36mm
Power Reserve
GT Racing Chronograph40h
Jazzmaster Open Heart Auto80h
Water Resistance
GT Racing Chronograph50m
Jazzmaster Open Heart Auto50m
MSRP
GT Racing Chronograph$399
Jazzmaster Open Heart Auto$2,695

Full specifications

Case

5 specs
Diameter
40mm
36mm
Thickness
12.7mm
10mm
Lug-to-Lug
46mm
Lug Width
18mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
Mother of pearl

Movement

3 specs
Caliber
H-10
Type
Quartz
Automatic
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$399
$2,695

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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.

Geckota GT Racing Chronograph

The Geckota GT Racing strap is praised for its quality leather, crisp stitching, and beautiful patina, offering excellent value at less than half the price of similar vintage straps. Some owners find the 125/80mm length longer than ideal, and the keeper potentially smaller. On balance, owners rate the Geckota GT Racing strap highly for its quality and value, despite minor concerns about its length and keeper size.

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.

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