Seiko Cal. 6676 - 633

The Seiko 6676-633 represents an important milestone in Seiko's 1992 lineup. Powered by the 6676 caliber with 21j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-91b75ea54ab3]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1992

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