Seiko Cal. 5665 - 331

The Seiko 5665-331 represents an important milestone in Seiko's 1972 lineup. It features a Cream dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-7d951742456c]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

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