Seiko Cal. 6661 - 922

The Seiko 6661-922 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-68ed38415d6e]

Also known as: Sumo, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1979

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