Seiko Cal. 4487 - 644

This Spring Drive model from 1985 features a 40mm Two-Tone case. With its 21mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-a4f1bbe21c39]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1985

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