Seiko Cal. 5623 - 406

The Seiko 5623-406 represents an important milestone in Seiko's 1971 lineup. Powered by the 5623 caliber with 17j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-9759777f6b51]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1971

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