Seiko Cal. 5654 - 691

The Seiko 5654-691 represents an important milestone in Seiko's 1979 lineup. Powered by the 5654 caliber with 33j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-584b09b5e665]

Also known as: Sumo, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1979

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