Seiko Cal. 5648 - 963

The Seiko 5648-963 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3f7c7d1fdbaf]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1977

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