Seiko Cal. 6624 - 990

The Seiko 6624-990 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-c37140f25af9]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1977

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