Side by side

Hamilton Jazzmaster Open Heart AutovsCincinnati Watch Company P-40 A-11 Pilot

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
P-40 A-11 Pilot
Cincinnati Watch CompanyP-40 A-11 Pilot
MSRP $695

At a glance

17 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
P-40 A-11 Pilot38mm
Power Reserve
Jazzmaster Open Heart Auto80h
P-40 A-11 Pilot65h
Water Resistance
Jazzmaster Open Heart Auto50m
P-40 A-11 Pilot100m
MSRP
Jazzmaster Open Heart Auto$2,695
P-40 A-11 Pilot$695

Full specifications

Case

9 specs
Category
Chronograph
Pilot
Diameter
36mm
38mm
Thickness
10mm
10.8mm
Lug-to-Lug
46mm
46.5mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
50m
100m
Caseback
Solid
Screw Down with Sapphire Display

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Mother of pearl
Brown
Indices
Applied

Movement

3 specs
Caliber
H-10
Sellita SW200-2 b
Power Reserve
80h
65h
Jewels
25
26

Pricing

1 specs
MSRP
$2,695
$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.

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.

Cincinnati Watch Company P-40 A-11 Pilot

Owners widely praise the Cincinnati Watch Company P-40 A-11 Pilot for its great size, comfortable bracelet, phenomenal timekeeping, simple design, and great craftsmanship. One owner notes the finishing is sharp. Some users wish for a smaller size, and one owner points out the quick-release spring bars can dig in while the bracelet lacks micro-adjustments. Overall, owners rate the Cincinnati Watch Company P-40 A-11 Pilot highly for its great size and phenomenal timekeeping.

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