Seiko Cal. 4579 - 641

The Seiko 4579-641 represents an important milestone in Seiko's 1972 lineup. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-5f6a13ceb653]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1972

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