Seiko Cal. 4555 - 442

This Hand-Winding model from 1969 features a 45mm Two-Tone case. Powered by the 4555 caliber with 20j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-58a6837f21bd]

Also known as: Shogun, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1969

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