Seiko Cal. 6624 - 921

The Seiko 6624-921 represents an important milestone in Seiko's 1971 lineup. Powered by the 6624 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-ab266129d306]

Also known as: Monster, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

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