Liaocheng Caliber G2666Z

Manufacturer	Shandong Liaocheng Zhong Tai Watch Co., Ltd. (山東聊城中泰表業有限公司)
Caliber Number	G2666Z, G2666ZH
Movement Type	Automatic, self-winding mechanical
Diameter	27mm
Height	6.3mm
Jewel Count	20 jewels
Beat Rate / Frequency	21,600 bph / 3 Hz
Lift Angle	Unconfirmed
Accuracy Rating	+/- 45 seconds/day
Power Reserve	36 hours
Hand-Windable?	Yes
Anti-Shock Device	Kif style (unconfirmed)
Hand Count	3
Functions	Central hours; central minutes; central sweeping seconds
Hacking Seconds?	Unconfirmed
Country of Manufacture	Made in China
Known Models	Invicta Objet D Art (27551), Invicta S1 Rally Diablo (34633), Benyar 5176M (Add your watch to the comments below…)

The Liaocheng caliber G2666Z is a skeletonized 3-hander, time-only automatic movement.

You may see this calibre listed as being made by “Hong Tai” but it seems that the rest of the factory name got lost in translation: Shandong Liaocheng Zhong Tai Watch Co., Ltd.

G2666Z movements are also distributed by PTS-Resources, which refers to them simply as “Liaocheng”, therefore, that’s what Caliber Corner will call them as well.

There is also a G2666ZH which appears to be the gold tone version.

Although this caliber is technically a skeleton dial movement, it is not uncommon for it to be used with solid dials, such as on the Benyar Aliexpress homage watches.

Additional Resources:

• More Invicta mentions
• More made in China watch movements