Seiko Cal. 4578 - 228

This Hand-Winding model from 1986 features a 46mm Two-Tone case. Powered by the 4578 caliber with 22j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-df4656f9c453]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1986

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