Seiko Cal. 4487 - 240

This Hand-Winding model from 1977 features a 36mm Gold-Plated case. It features a Silver dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-482c0683463b]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1977

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