Seiko Cal. 5687 - 431

The Seiko 5687-431 represents an important milestone in Seiko's 1972 lineup. It features a White dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-1cf183865536]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1972

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