Seiko Cal. 5664 - 990

This Spring Drive model from 1989 features a 38mm Titanium case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-3691e5d7d8ae]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1989

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