Seiko Cal. 4487 - 675

Released in 1984, the Cal. 4487 with design code 675 was part of Seiko's domestic market collection. With its 22mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-efab0ae14f71]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1984

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