Side by side

Grand Seiko SLGC009vsYema Superman Slim CMM.20

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

SLGC009
Grand SeikoSLGC009
MSRP $16,900
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

12 of 29 specs differ
Diameter
SLGC00943mm
Superman Slim CMM.2039mm
Power Reserve
SLGC00972h
Superman Slim CMM.2040h
Water Resistance
SLGC009200m
Superman Slim CMM.20300m
MSRP
SLGC009$16,900
Superman Slim CMM.20$2,372

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
43mm
39mm
Thickness
15.6mm
9.95mm
Lug-to-Lug
50mm
Lug Width
23mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner

Movement

2 specs
Caliber
9SC5
Yema CMM.20
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$16,900
$2,372

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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 SLGC009

Owners widely report the Grand Seiko SLGC009 is perceived as "big" but "not obnoxious," with some finding its bold, aggressive, and futuristic design appealing while others deem it too daring for the brand. Opinions are split on its aesthetic, with comparisons ranging from a G-Shock to the Cybertruck. One owner noted a desire for a more offset clasp. The movement is praised by some, though the dial color and hour indexes drew criticism from one voice. The Grand Seiko SLGC009's rumored discontinuation is speculated to potentially aid in value retention. On balance, owners are divided on the Grand Seiko SLGC009's polarizing design, with its movement and wearability being points of discussion.

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.

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