Seiko Cal. 6645 - 984

This Quartz model from 1976 features a 44mm Stainless Steel case. Powered by the 6645 caliber with 29j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-0a096670fef6]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1976

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