Seiko Cal. 0766 - 820

This Spring Drive model from 1977 features a 39mm PVD Black case. Powered by the 0766 caliber with 23j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-52516778d637]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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