Seiko Cal. 5648 - 443

This Spring Drive model from 1969 features a 43mm Stainless Steel case. Powered by the 5648 caliber with 18j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-0dedadb05981]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1969

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