Seiko Cal. 6621 - 383

Released in 1978, the Cal. 6621 with design code 383 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-7270932a5164]

Also known as: Helmet, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1978

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