Seiko Cal. 5621 - 863

The Seiko 5621-863 represents an important milestone in Seiko's 1973 lineup. Powered by the 5621 caliber with 20j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-343b747877f3]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1973

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