Seiko Cal. 6344 - 666

The Seiko 6344-666 represents an important milestone in Seiko's 1980 lineup. Powered by the 6344 caliber with 33j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-57b7fd09ff8c]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1980

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