Seiko Cal. 6621 - 552

This Spring Drive model from 1970 features a 42mm Gold-Plated case. Powered by the 6621 caliber with 32j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-3b0d784f3d27]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1970

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