Seiko Cal. 5642 - 478

The Seiko 5642-478 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-18a3688158ee]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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