Side by side

Grand Seiko STGF359vsYema Superman Slim CMM.20

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

STGF359
Grand SeikoSTGF359
MSRP $2,600
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372
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 STGF359

Owners widely praise the Grand Seiko STGF359 for its elegant pairing with an engagement ring. Some owners find the 29mm case size too small for a man's wrist, while others suggest it can be worn by men with smaller wrists, recommending an in-person try-on. One owner notes potential date wheel misalignment requiring servicing. The bracelet has a maximum perimeter of 185mm, with extra links available. On balance, owners value the Grand Seiko STGF359 for its elegant aesthetic, though its small size is a point of consideration.

From video reviewers

The Grand Seiko STGF359 features a 9F quartz movement with exceptional accuracy, deviating by only +/−10 seconds per year. A drawback of the watch is its 40mm case size, which may be a concern for those with smaller wrists. Reviewers disagree on the type of movement, with one praising the 9F quartz and the other highlighting the spring drive movement.

Yema Superman Slim CMM.20

Owners and reviewers praise the Yema Superman Slim CMM.20 for its appealing retro design, balanced 39mm case, and in-house CMM.20 micro-rotor movement, with some finding the fish scale bracelet attractive. Concerns exist regarding its $2500/€2,490 MSRP, with some owners questioning its value and noting the potential for QC issues or a "jittery" seconds hand attributed to the new movement. The bracelet's articulation and stamped clasp draw criticism, though some owners report it improves with wear. Overall, owners and reviewers appreciate the Yema Superman Slim CMM.20's vintage styling and unique micro-rotor movement, but its value proposition and some finishing details are points of contention.

At a glance

12 of 29 specs differ
Diameter
STGF35928.9mm
Superman Slim CMM.2039mm
Power Reserve
STGF35940h
Superman Slim CMM.2040h
Water Resistance
STGF359100m
Superman Slim CMM.20300m
MSRP
STGF359$2,600
Superman Slim CMM.20$2,372

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
28.9mm
39mm
Thickness
8.7mm
9.95mm
Lug-to-Lug
35.4mm
Lug Width
14mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner

Movement

2 specs
Caliber
4J52
Yema CMM.20
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$2,600
$2,372
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