Seiko Cal. 5640 - 536

This Solar model from 1981 features a 35mm Gold-Plated case. It features a Green dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-80a6707bec6d]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1981

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