Seiko Cal. 6648 - 383

This Quartz model from 1991 features a 41mm Gold-Plated case. Powered by the 6648 caliber with 24j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-3973af4b8e05]

Also known as: Sumo, Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1991

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