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You are here: Home / Movements / Seiko 6810

Seiko 6810

Last Update: February 18, 2020

Brand: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 Seiko Cal. 6810 in the 1991 UTD limited edition 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: 1973 – 1998
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s
The 1991 Seiko U.T.D. brought the Cal. 68 family back to production

Cal. 6810 is an ultra-thin watch movement from Seiko produced between 1973 and 1998. It was derived from the original 1969 Cal. 68A and features an unusual shape, with flat sides, for use in rectangular watches. Despite this, most watches using Cal. 6810 feature round dials and cases that could accommodate a round movement.

Cal. 6810 was produced throughout the 1970s and used in a series of ultra-thin dress watches marketed under the “U.T.D.” name. These were no longer in the Seiko catalog after 1978, and the movement was retired.

In 1991, Seiko creates a special reissue of the original U.T.D. watch to celebrate the company’s 110th anniversary. This coincided with renewed interest in mechanical movements and Seiko brought the movement back into production in 1993. The resulting SCVL series was Seiko branded but priced quite expensive relative to other models. At that same time, Seiko created an upscale version of the movement, Cal. 6870, finished and regulated for use in the emerging Credor brand. By the end of the decade, Seiko had retired Cal. 6810 once again, assigning the Cal. 68 family entirely to the Credor brand.

This 1993 Seiko catalog shows Cal. 6810 and the new Seiko SCVL watch line

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.

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