Seiko 6870

	Brand:	Credor, Seiko
	Family:	Seiko 68 Family
	Height:	1.98 mm
	Jewels:	22
	Reserve:	37 hours
	Frequency:	21,600 A/h
	Winding:	Hand winding
	Diameter:	25.60 mm (11.5 ligne)
© Seiko Cal. 6870 was launched in 1993 as a redesign of the original	Complications:
	Hands:	Central Hour Hand, Central Minute Hand

Distinguishing Technical Characteristics
Ultra-Thin Hand-Winding Hand-Winding Clockwise Balance Cock Balance Balance at 7:30 Barrel at 10:30
Production: 1993 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Cal. 6870 is an ultra-thin hand-winding two-handed movement produced by Seiko for Credor since 1993. It is derived from the 1973 Cal. 6810, which was used in a line of ultra-thin dress watches for Seiko, and remains similar to the original 1969 Cal. 68A. Other recent movements in the Cal. 68 family (Cal. 6890, 6898, 6899, and 6830) are quite different in design, with the balance wheel moved opposite the winding crown and a round rather than squared-off overall shape.

Cal. 6870 has been widely used in Credor models since the 1993 introduction. Notable watches powered by this movement include the 2001 110th Anniversary models and the 2002-present Credor UTD GBAQ series. It has also been used in the Credor Signo GBAQ line since 2007. From 2010 through 2012 it was used in the Credor Node GCAQ series.

Seiko 68 Family