Seiko Cal. 6658 - 863

The Seiko 6658-863 represents an important milestone in Seiko's 1982 lineup. Powered by the 6658 caliber with 36j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-fe80dd8550b6]

Also known as: Helmet, Silverwave

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1982

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