Seiko Cal. 6621 - 290

Released in 1977, the Cal. 6621 with design code 290 was part of Seiko's domestic market collection. With its 18mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-718ef2095cd6]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1977

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