Seiko Cal. 5690 - 435

The Seiko 5690-435 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d0e187925237]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1971

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