Side by side

Grand Seiko SLGB023vsYema Wristmaster Slim Small Seconds CMM.29

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

SLGB023
Grand SeikoSLGB023
MSRP $12,400
Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

12 of 29 specs differ
Diameter
SLGB02340.8mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
SLGB02372h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
SLGB023300m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
SLGB023$12,400
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40.8mm
39mm
Thickness
12.9mm
9mm
Lug-to-Lug
48.5mm
Lug Width
21mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

3 specs
Caliber
9RB1
Yema CMM.29
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$12,400
$2,249

Follow this matchup

Get a note when Grand Seiko SLGB023 vs Yema Wristmaster Slim Small Seconds CMM.29 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 Wristmaster Slim Small Seconds CMM.29

Owners widely praise the Yema Wristmaster Slim Small Seconds CMM.29 for its slim 9.5mm case, unique nature-inspired dial, and brushed steel finish. The micro-rotor movement is noted for its 4Hz beat rate and 42-hour power reserve, regulated to -/+ 10 seconds per day. Some owners report concerns regarding the movement and warranty process, while a reviewer questioned the value proposition at its price point and noted minor finishing inconsistencies on a prototype. On balance, the Yema Wristmaster Slim Small Seconds CMM.29 is highly regarded by owners for its distinctive design and comfortable wearability.

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.