Seiko Cal. 4487 - 171

The Seiko 4487-171 represents an important milestone in Seiko's 1976 lineup. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-5ffd6354c65a]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

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