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You are here: Home / Movements / Seiko 6870

Seiko 6870

Last Update: February 18, 2020

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.

The Credor GBAQ985 and GBAQ984 still feature the “U.T.D.” initials on the dial

Seiko 68 Family

CalibreProductionJewelsModelsNotes
68A1969-197226
68101973-1978
1991-1998
22HDF/HTB/ATB/CDF
SCVL
Tonneau shape
68302016-current22GBCCCredor tourbillon
68701993-current22GBAQ/GCAQCredor tonneau
68902009-current22GBBYCredor
68982005-current26GBBE/GCBECredor small seconds
68991996-current26GBBDCredor skeleton
Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.
Manufacturer Link

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