Side by side

Hamilton Jazzmaster Maestro Auto ChronovsSpinnaker Dumas Automatic

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

Jazzmaster Maestro Auto Chrono
HamiltonJazzmaster Maestro Auto Chrono
MSRP $2,275
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Maestro Auto Chrono41mm
Dumas Automatic44mm
Power Reserve
Jazzmaster Maestro Auto Chrono60h
Dumas Automatic40h
Water Resistance
Jazzmaster Maestro Auto Chrono100m
Dumas Automatic300m
MSRP
Jazzmaster Maestro Auto Chrono$2,275
Dumas Automatic$239

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
41mm
44mm
Thickness
15.1mm
15mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Silver
Blue

Movement

2 specs
Caliber
H-21
SII NH35A
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,275
$239

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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 Maestro Auto Chrono

Owners widely praise the Hamilton Jazzmaster Maestro Auto Chrono for its dramatic quality and attention to detail, with its versatile design suitable for dressing up or down. Timekeeping is generally good, with one owner reporting gains of no more than 5 seconds per day, and another noting their 7750-based movement has kept time within 10 seconds per day even after 15 years without service. Some owners find the lack of a second hand a dealbreaker, and the 45mm size may not fit comfortably under sleeves. Concerns exist regarding potentially high maintenance costs and intervals. Overall, owners rate the Hamilton Jazzmaster Maestro Auto Chrono highly for its bulletproof build and classic, dressy appearance at an accessible price point.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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