Seiko Cal. 5621 - 370

The Seiko 5621-370 represents an important milestone in Seiko's 1989 lineup. Powered by the 5621 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-fa293087bedc]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1989

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