Seiko Cal. 5691 - 266

This Spring Drive model from 1976 features a 42mm Gold-Plated case. Powered by the 5691 caliber with 21j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-34f0d551e5a8]

Also known as: Bellmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1976

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