Seiko Cal. 5663 - 545

The Seiko 5663-545 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-ba0cfb790bd3]

Also known as: Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1978

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