Seiko Cal. 6648 - 930

The Seiko 6648-930 represents an important milestone in Seiko's 1976 lineup. Powered by the 6648 caliber with 23j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-d6c482cf20a6]

Also known as: Helmet, Emperor

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1976

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