Seiko Cal. 4536 - 663

The Seiko 4536-663 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-4df56afff70e]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1975

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