Seiko Cal. 5621 - 387

The Seiko 5621-387 represents an important milestone in Seiko's 1995 lineup. Powered by the 5621 caliber with 19j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-863f87a08801]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1995

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