Side by side

Hamilton Jazzmaster Maestro Auto ChronovsStudio Underd0g Watermelon (Gen3)

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

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.

From video reviewers

The automatic chronograph movement is a noted strength. The style is also highlighted as an enticing attribute. Reviewers question its ability to compete with luxury watches at a similar price point.

Studio Underd0g Watermelon (Gen3)

Owners widely praise the Studio Underd0g Watermelon (Gen3) for its fun, entrepreneurial, and affordable nature, with a design described as "Bauhaus meets Bugs Bunny." However, some find its colors a love-it-or-hate-it feature and others perceive the overall quality and finishing as a tier below comparable watches. Accuracy figures are not specified, but one owner found the watch too thick for their taste. The chronograph function has been noted as potentially sticky or jumpy. On balance, owners are divided on the Studio Underd0g Watermelon (Gen3), with opinions split between its unique design and perceived value for money.

At a glance

18 of 29 specs differ
Diameter
Jazzmaster Maestro Auto Chrono41mm
Watermelon (Gen3)38.5mm
Power Reserve
Jazzmaster Maestro Auto Chrono60h
Watermelon (Gen3)40h
Water Resistance
Jazzmaster Maestro Auto Chrono100m
Watermelon (Gen3)
MSRP
Jazzmaster Maestro Auto Chrono$2,275
Watermelon (Gen3)$550

Full specifications

Case

7 specs
Diameter
41mm
38.5mm
Thickness
15.1mm
Lug-to-Lug
0mm
Lug Width
22mm
Finish
Brushed and Polished
Water Resistance
100m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inside
Dial Color
Silver
Indices
Applied

Movement

6 specs
Caliber
Hamilton H-21
Beat Rate
0 vph
28,800 vph
Power Reserve
60h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$2,275
$550
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