Which is cheaper, the Grand Seiko STGK007 or the Yema Wristmaster Slim Small Seconds CMM.29?

At MSRP the Yema Wristmaster Slim Small Seconds CMM.29 is the cheaper of the two at $2,249, against $6,200 for the Grand Seiko STGK007 — a $3,951 gap before any retailer discounting.

Which is bigger, the Grand Seiko STGK007 or the Yema Wristmaster Slim Small Seconds CMM.29?

The Yema Wristmaster Slim Small Seconds CMM.29 wears larger at 39mm versus 27.8mm for the Grand Seiko STGK007 — a 11.2mm difference across the dial.

Which has a longer power reserve, the Grand Seiko STGK007 or the Yema Wristmaster Slim Small Seconds CMM.29?

The Grand Seiko STGK007 carries a 50-hour power reserve against 40 hours on the Yema Wristmaster Slim Small Seconds CMM.29.

What movement does the Grand Seiko STGK007 run compared to the Yema Wristmaster Slim Small Seconds CMM.29?

Both watches run automatic movements — the Grand Seiko STGK007 uses the 9S27 and the Yema Wristmaster Slim Small Seconds CMM.29 uses the Yema CMM.29.

Side by side

Grand Seiko STGK007vsYema Wristmaster Slim Small Seconds CMM.29

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

Grand Seiko STGK007

stgk007g

MSRP $6,200

Yema Wristmaster Slim Small Seconds CMM.29

yema-wristmaster-slim-cmm-29-76-26-29-05-sn-m

MSRP $2,249

At a glance

8 of 29 specs differ

Diameter

STGK00727.8mm

Wristmaster Slim Small Seconds CMM.2939mm

Power Reserve

STGK00750h

Wristmaster Slim Small Seconds CMM.2940h

Water Resistance

STGK007100m

Wristmaster Slim Small Seconds CMM.29100m

MSRP

STGK007$6,200

Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

4 specs

Diameter

27.8mm

39mm

Thickness

11.2mm

9mm

Lug-to-Lug

33.5mm

—

Lug Width

13mm

20mm

Crystal & Dial

1 specs

AR Coating

Yes

Inner

Movement

2 specs

Caliber

9S27

Yema CMM.29

Power Reserve

50h

40h

Pricing

1 specs

MSRP

$6,200

$2,249

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