Seiko Cal. 4487 - 765

The Seiko 4487-765 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-865e5db0dbf5]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1991

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