Seiko Cal. 4578 - 987

The Seiko 4578-987 represents an important milestone in Seiko's 1971 lineup. It features a Cream dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-fd8bdab16289]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1971

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