Bremont Altitude 39 DatevsHamilton Jazzmaster Open Heart Auto
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differFull specifications
Case
7 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsFollow this matchup
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Owners + reviewers, side by side
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.
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.
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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