Seiko Cal. 4551 - 959

This Quartz model from 1966 features a 41mm Gold-Plated case. Powered by the 4551 caliber with 18j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-ddda6696ddcb]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1966

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