Seiko Cal. 6621 - 994

This Spring Drive model from 1973 features a 39mm PVD Black case. Powered by the 6621 caliber with 18j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-44f2535a432d]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1973

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