Seiko Cal. 4528 - 660

The Seiko 4528-660 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-e5c38cb00c24]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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