Side by side

Bremont Altitude ChronographvsHamilton Jazzmaster Open Heart Auto

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
Jazzmaster Open Heart Auto
HamiltonJazzmaster Open Heart Auto
MSRP $2,695

At a glance

10 of 29 specs differ
Diameter
Altitude Chronograph42mm
Jazzmaster Open Heart Auto36mm
Power Reserve
Altitude Chronograph40h
Jazzmaster Open Heart Auto80h
Water Resistance
Altitude Chronograph100m
Jazzmaster Open Heart Auto50m
MSRP
Altitude Chronograph$6,300
Jazzmaster Open Heart Auto$2,695

Full specifications

Case

6 specs
Diameter
42mm
36mm
Thickness
14.7mm
10mm
Lug-to-Lug
46mm
Lug Width
14.7mm
18mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
Silver
Mother of pearl

Movement

2 specs
Caliber
BE-50AE
H-10
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$6,300
$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.

Bremont Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for 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.

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