Side by side

Hamilton Jazzmaster Thinline AutovsYema Superman Worldtime GMT

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

Jazzmaster Thinline Auto
HamiltonJazzmaster Thinline Auto
MSRP $1,145
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

9 of 29 specs differ
Diameter
Jazzmaster Thinline Auto40mm
Superman Worldtime GMT39mm
Power Reserve
Jazzmaster Thinline Auto42h
Superman Worldtime GMT40h
Water Resistance
Jazzmaster Thinline Auto50m
Superman Worldtime GMT300m
MSRP
Jazzmaster Thinline Auto$1,145
Superman Worldtime GMT$1,549

Full specifications

Case

5 specs
Category
Dress
GMT
Diameter
40mm
39mm
Thickness
8.45mm
Lug-to-Lug
46mm
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
Beige
39mm Automatic

Movement

2 specs
Caliber
2892-A2
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,145
$1,549

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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 Thinline Auto

Owners widely praise the Hamilton Jazzmaster Thinline Auto for its gorgeous, stunning, and captivating dials, particularly the champagne and burgundy variants, and its thin, comfortable profile, often noted at around 7mm to 8.4mm, making it ideal for wearability under shirt cuffs. The ETA 2892 movement is considered a strong value, though some owners report the rotor can be noisy and the winding feel unrefined, while others find the small crown difficult to manipulate. The absence of a second hand is polarizing, with some appreciating the simplicity and ease of setting, while others miss its presence. Overall, owners rate the Hamilton Jazzmaster Thinline Auto highly for its attractive, thin design and dial beauty at its price point.

From video reviewers

The slim case profile and affordable price point are consistently praised. Reviewers noted the absence of a second hand.

Yema Superman Worldtime GMT

Owners widely praise the Yema Superman Worldtime GMT for its premium feel, unique bezel-lock mechanism, and attractive domed crystal. Some owners note the aluminum bezel insert is less desirable than ceramic and report the bracelet clasp can be stiff or difficult to open. Inconsistent quality control and poor customer service have been flagged by some owners. On balance, owners value the Yema Superman Worldtime GMT for its distinctive features and comfortable wearability.

From video reviewers

The "Coke" bezel and maxi dial are attractive design elements. The in-house automatic GMT movement is a French alternative to pricier GMTs.

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