Seiko Cal. 4587 - 631

Released in 1978, the Cal. 4587 with design code 631 was part of Seiko's domestic market collection. With its 18mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-4cbd6babb9b3]

Also known as: Panda, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1978

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