Seiko Cal. 4487 - 663

The Seiko 4487-663 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-0babd9e69b79]

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1971

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