Side by side

Hamilton Jazzmaster Slim AutovsYema Superman Worldtime GMT

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

Jazzmaster Slim Auto
HamiltonJazzmaster Slim Auto
MSRP $825
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Slim Auto40mm
Superman Worldtime GMT39mm
Power Reserve
Jazzmaster Slim Auto50h
Superman Worldtime GMT40h
Water Resistance
Jazzmaster Slim Auto30m
Superman Worldtime GMT300m
MSRP
Jazzmaster Slim Auto$825
Superman Worldtime GMT$1,549

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
40mm
39mm
Thickness
8.35mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Water Resistance
30m
300m

Crystal & Dial

1 specs
Dial Color
Black
39mm Automatic

Movement

2 specs
Caliber
No caliber
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$825
$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 Slim Auto

The Hamilton Jazzmaster Slim Auto is praised for its elegance, light weight, and impressive leather strap, offering a classy yet engaging aesthetic. Its thin 8mm profile, achieved partly by omitting a seconds hand and utilizing the ETA 2892 movement, contributes to its wearability. However, one owner notes the 44mm case size as being very large, and another finds it less appealing than vintage Hamilton models, though the black dial version is considered better looking. Overall, owners appreciate the Hamilton Jazzmaster Slim Auto for its slim profile and elegant design.

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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