Seiko Cal. 4550 - 989

This Spring Drive model from 1972 features a 40mm Gold-Plated case. Powered by the 4550 caliber with 29j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-95123a735a97]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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