Seiko Cal. 5654 - 691

Seiko 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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