Seiko Cal. 5621 - 745

This Hand-Winding model from 1972 features a 42mm Hardlex-Coated Steel case. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-079120840745]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1972

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