Seiko Cal. 6636 - 888

The Seiko 6636-888 represents an important milestone in Seiko's 1981 lineup. Powered by the 6636 caliber with 36j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-995395fb8478]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1981

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