Seiko Cal. 5645 - 664

This Quartz model from 1966 features a 38mm Hardlex-Coated Steel case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-a544877f45b4]

Also known as: Silverwave, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1966

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