Seiko Cal. 4557 - 636

This Hand-Winding model from 1976 features a 43mm Two-Tone case. Powered by the 4557 caliber with 24j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-a71554aa7b1e]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1976

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