Seiko Cal. 6648 - 936

The Seiko 6648-936 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-7bd83fa8e53c]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1981

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