Seiko Cal. 5621 - 780

The Seiko 5621-780 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-5cde2cb516ff]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1975

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