Seiko Cal. 6621 - 773

The Seiko 6621-773 represents an important milestone in Seiko's 1970 lineup. With its 20mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-86130772f6ba]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1970

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