Seiko Cal. 5620 - 544

The Seiko 5620-544 represents an important milestone in Seiko's 1982 lineup. Powered by the 5620 caliber with 18j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-554fff8b1c9e]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1982

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