Side by side

Grand Seiko SLGB023vsYema Superman Bronze CMM.10

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

SLGB023
Grand SeikoSLGB023
MSRP $12,400
Superman Bronze CMM.10
YemaSuperman Bronze CMM.10
MSRP $1,699

At a glance

12 of 29 specs differ
Diameter
SLGB02340.8mm
Superman Bronze CMM.1039mm
Power Reserve
SLGB02372h
Superman Bronze CMM.1040h
Water Resistance
SLGB023300m
Superman Bronze CMM.10300m
MSRP
SLGB023$12,400
Superman Bronze CMM.10$1,699

Full specifications

Case

5 specs
Diameter
40.8mm
39mm
Thickness
12.9mm
11mm
Lug-to-Lug
48.5mm
Lug Width
21mm
19mm
Material
Titanium
Bronze

Crystal & Dial

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

Movement

3 specs
Caliber
9RB1
Yema CMM.10
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$12,400
$1,699

Follow this matchup

Get a note when Grand Seiko SLGB023 vs Yema Superman Bronze CMM.10 gets more votes, a community discussion, or a price drop. No account needed.

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 SLGB023

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

Yema Superman Bronze CMM.10

The Yema Superman Bronze CMM.10 is praised for its neo-vintage dive watch aesthetic, featuring a bronze case with brushed and polished finishing and a gradient blue sandwich dial with Super-LumiNova. It is powered by the in-house CMM.10 automatic movement, which offers a 70-hour power reserve and chronometric precision rated at -3/+5 seconds per day. The watch is available in 39mm and 41mm case sizes and comes on FKM Viton rubber straps. It was offered at a pre-order price of €999. Overall, reviewers highlight the Yema Superman Bronze CMM.10 as a refined neo-vintage dive watch with a capable in-house movement and attractive finishing.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.