Seiko Cal. 5665 - 823

This Quartz model from 1976 features a 35mm Hardlex-Coated Steel case. Powered by the 5665 caliber with 31j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-b9eea5eba6fc]

Also known as: Tuna, Goldfeather

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1976

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