Seiko Cal. 5643 - 348

The Seiko 5643-348 represents an important milestone in Seiko's 1977 lineup. Powered by the 5643 caliber with 35j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-626d32ddf95a]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1977

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