Seiko Cal. 4521 - 787

The Seiko 4521-787 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-33f30aa6a618]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1968

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