Seiko Cal. 6623 - 590

This Hand-Winding model from 1965 features a 36mm Stainless Steel case. Powered by the 6623 caliber with 26j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-00cef3a547fd]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1965

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