Seiko Cal. 5621 - 981

The Seiko 5621-981 represents an important milestone in Seiko's 1972 lineup. Powered by the 5621 caliber with 20j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-a42489a82d2a]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1972

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