Seiko Cal. 0780 - 423

The Seiko 0780-423 represents an important milestone in Seiko's 1968 lineup. Powered by the 0780 caliber with 34j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-da60dfa0d7d3]

Also known as: Bellmatic, World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1968

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