Seiko Cal. 5678 - 643

This Automatic model from 1972 features a 44mm Gold-Plated case. Powered by the 5678 caliber with 34j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-2eb3af346ad6]

Also known as: Monster, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1972

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