Side by side

Hamilton Jazzmaster Auto ChronovsStudio Underd0g Full Moon

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

Jazzmaster Auto Chrono
HamiltonJazzmaster Auto Chrono
MSRP $2,095
Full Moon
Studio Underd0gFull Moon
MSRP $800

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Auto Chrono42mm
Full Moon39.5mm
Power Reserve
Jazzmaster Auto Chrono60h
Full Moon40h
Water Resistance
Jazzmaster Auto Chrono100m
Full Moon
MSRP
Jazzmaster Auto Chrono$2,095
Full Moon$800

Full specifications

Case

6 specs
Category
Chronograph
Casual
Diameter
42mm
39.5mm
Thickness
15.23mm
Lug-to-Lug
46mm
Lug Width
22mm
Water Resistance
100m

Crystal & Dial

1 specs
Dial Color
Black
Standard

Movement

3 specs
Caliber
H-21
Type
Automatic
Manual
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,095
$800

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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 Auto Chrono

Owners widely praise the Hamilton Jazzmaster Auto Chrono for its value and dressy yet substantial look. The H-31 or adapted 7753 movement is noted, alongside a 60-hour power reserve. Some owners prefer a 3-6-9 subdial layout or a smaller case size, and the movement's thickness makes it unsuitable for those seeking a slim watch. On balance, owners rate the Hamilton Jazzmaster Auto Chrono highly for its value and refined aesthetic.

Studio Underd0g Full Moon

Owners widely praise the Studio Underd0g Full Moon's harmonious creamy dial and its 37mm case, which fits flawlessly. The innovative sapphire disc with numerals is a highlight, though two visible screws holding it are noted as a minor aesthetic drawback. Some owners find the watch overpriced, while others see value in the upgraded Sellita movement under $1k. Lume is surprisingly good, and the included NATO strap is preferred by some over the leather. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day. On balance, owners rate the Studio Underd0g Full Moon highly for its versatile dial and well-fitting case at the price point.

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