Seiko Cal. 5621 - 587

The 5621-587 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5621 caliber with 24j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-28db57f9acb6]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1991

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