Seiko Cal. 4547 - 920

The Seiko 4547-920 represents an important milestone in Seiko's 1969 lineup. Powered by the 4547 caliber with 24j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-aed482318265]

Also known as: Sumo, Bellmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1969

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