Seiko Cal. 6621 - 930

The Seiko 6621-930 represents an important milestone in Seiko's 1975 lineup. Powered by the 6621 caliber with 22j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-b5842a30a8c2]

Also known as: World Timer, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1975

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