Seiko Cal. 0770 - 636

This Spring Drive model from 1965 features a 35mm Two-Tone case. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-799a90417b6c]

Also known as: Silverwave, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1965

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