Seiko Cal. 4491 - 503

The Seiko 4491-503 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-ec9bcbce9a41]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1979

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