Seiko Cal. 6668 - 826

The Seiko 6668-826 represents an important milestone in Seiko's 1982 lineup. Powered by the 6668 caliber with 27j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-9b8a0086b4dd]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1982

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