Side by side

Grand Seiko SBGX355vsYema Superman Tourbillon CMM.31 Limited Edition

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

SBGX355
Grand SeikoSBGX355
MSRP $4,100
Superman Tourbillon CMM.31 Limited Edition
YemaSuperman Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

13 of 29 specs differ
Diameter
SBGX35537mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
SBGX35540h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
SBGX355100m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
SBGX355$4,100
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
37mm
43mm
Thickness
10.6mm
11.7mm
Lug-to-Lug
44.6mm
Lug Width
19mm
22mm
Material
Titanium
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Steel

Movement

2 specs
Caliber
9F62
Yema CMM.31 Tourbillon
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$4,100
$13,000

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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 SBGX355

The Grand Seiko SBGX355 is widely praised for its beautiful dial, excellent finishing, and perfect 37mm size. Owners report unparalleled accuracy from the 9F62 quartz movement, rated to within 10 seconds per year. The high-intensity titanium case and 100m water resistance are noted features. Some consider the SBGX355 a "baby Snowflake" and a more accessible alternative to other models. Overall, owners and reviewers rate the Grand Seiko SBGX355 highly for its iconic Snowflake dial and exceptional quartz accuracy in a wearable 37mm case.

From video reviewers

The titanium case finishing is a significant strength. The deployant clasp is noted as prone to rattle. Reviewers disagree on the ideal case size for everyday wear.

Yema Superman Tourbillon CMM.31 Limited Edition

Owners praise the Yema Superman Tourbillon CMM.31 Limited Edition as an incredible and crazy watch, appreciating its unnecessary tourbillon complication and impressive specifications at a remarkable price point. The titanium construction contributes to comfort despite the 43mm case size. One reviewer notes the bracelet clasp's extension system is somewhat crude. On balance, owners and reviewers rate the Yema Superman Tourbillon CMM.31 Limited Edition highly for its compelling tourbillon feature at an accessible price.

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