Seiko Cal. 0766 - 257

This Solar model from 1978 features a 43mm Gold-Plated case. Powered by the 0766 caliber with 30j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-f402d298a5ba]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1978

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