Side by side

Seiko Diamond CollectionvsYema Superman Worldtime GMT

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

Diamond Collection
SeikoDiamond Collection
MSRP $525
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

10 of 29 specs differ
Diameter
Diamond Collection30mm
Superman Worldtime GMT39mm
Power Reserve
Diamond Collection40h
Superman Worldtime GMT40h
Water Resistance
Diamond Collection50m
Superman Worldtime GMT300m
MSRP
Diamond Collection$525
Superman Worldtime GMT$1,549

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
30mm
39mm
Thickness
6.3mm
Lug-to-Lug
36.5mm
Lug Width
5mm
20mm
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
Black
39mm Automatic

Movement

2 specs
Caliber
7N01
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$525
$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.

Seiko Diamond Collection

The Seiko Diamond Collection is widely praised by owners for its stunning beauty, featuring 14 diamonds, a mother-of-pearl dial, and a two-tone color scheme. Reviewers note its dial is difficult to capture in photos and that its fit and finish suggest excellent value, especially when purchased on sale. One owner describes the gold plating on the bracelet showing some fading from desk work, and its gold tone may not suit all tastes. Overall, owners rate the Seiko Diamond Collection highly for its striking aesthetics and perceived value.

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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