Seiko Cal. 4587 - 220

The Seiko 4587-220 represents an important milestone in Seiko's 1971 lineup. It features a Navy dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-deff0536f2f8]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

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