Seiko Cal. 4477 - 637

This Quartz model from 1986 features a 35mm PVD Black case. Powered by the 4477 caliber with 20j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-bfe667d9bd7d]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1986

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