Seiko Cal. 5662 - 636

The Seiko 5662-636 represents an important milestone in Seiko's 1979 lineup. It features a Silver dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-a8215d3e5207]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1979

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