Side by side

Grand Seiko SLGC001vsYema Superman Worldtime GMT

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

SLGC001
Grand SeikoSLGC001
MSRP $14,700
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

12 of 29 specs differ
Diameter
SLGC00143.2mm
Superman Worldtime GMT39mm
Power Reserve
SLGC00172h
Superman Worldtime GMT40h
Water Resistance
SLGC001100m
Superman Worldtime GMT300m
MSRP
SLGC001$14,700
Superman Worldtime GMT$1,549

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
43.2mm
39mm
Thickness
15.3mm
Lug-to-Lug
51.5mm
Lug Width
23mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
39mm Automatic

Movement

2 specs
Caliber
9SC5
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$14,700
$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.

Grand Seiko SLGC001

The Grand Seiko SLGC001 is praised for its high-tech titanium construction and 72-hour power reserve. Reviewers note the new 9SC5 movement, a 5Hz caliber with a +5 to -3 seconds per day accuracy rating. The watch features a balanced tri-compax dial and 100m water resistance. However, its 43.2mm width and 15.3mm thickness are described as bulky, and some find its styling less distinctive than previous models. On balance, reviewers highlight the technical achievement of Grand Seiko's first mechanical chronograph, despite its substantial dimensions.

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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