Side by side

Grand Seiko SBGM245vsYema Superman Worldtime GMT

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

SBGM245
Grand SeikoSBGM245
MSRP $6,100
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

9 of 29 specs differ
Diameter
SBGM24540.5mm
Superman Worldtime GMT39mm
Power Reserve
SBGM24572h
Superman Worldtime GMT40h
Water Resistance
SBGM245200m
Superman Worldtime GMT300m
MSRP
SBGM245$6,100
Superman Worldtime GMT$1,549

Full specifications

Case

4 specs
Diameter
40.5mm
39mm
Thickness
14.4mm
Lug-to-Lug
48.6mm
Water Resistance
200m
300m

Crystal & Dial

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

Movement

2 specs
Caliber
9S66
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$6,100
$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 SBGM245

Owners widely appreciate the Grand Seiko SBGM245 for its blend of sport and luxury, with one enthusiast highlighting its superior workmanship over quartz movements. However, opinions on its size vary, as one owner found the SBGM245 too large, preferring the comfort of a different variant. Overall, owners value the Grand Seiko SBGM245 for its refined craftsmanship, though its wearability is a point of personal preference.

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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