Seiko Cal. 4547 - 790

The Seiko 4547-790 represents an important milestone in Seiko's 1975 lineup. Powered by the 4547 caliber with 23j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-532e3494ffa0]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1975

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