Seiko Cal. 5621 - 280

This Automatic model from 1984 features a 45mm Stainless Steel case. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-5c0f24e66c5a]

Also known as: Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1984

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