Seiko Cal. 5669 - 761

The Seiko 5669-761 represents an important milestone in Seiko's 1979 lineup. Powered by the 5669 caliber with 27j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-e3eaab34c50e]

Also known as: Shogun, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1979

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