Seiko Cal. 5621 - 999

The Seiko 5621-999 represents an important milestone in Seiko's 1979 lineup. Powered by the 5621 caliber with 20j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-a0197129e5da]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1979

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