Seiko Cal. 5621 - 523

The Seiko 5621-523 represents an important milestone in Seiko's 1971 lineup. Powered by the 5621 caliber with 34j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-4dcc87325258]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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