Seiko Cal. 6646 - 919

This Spring Drive model from 1966 features a 44mm Gold-Plated case. Powered by the 6646 caliber with 36j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-2238565acfbc]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1966

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