Seiko Cal. 3866 - 720

This Solar model from 1978 features a 40mm Gold-Plated case. Powered by the 3866 caliber with 29j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-df1604400ff2]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1978

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