Seiko Cal. 5639 - 147

Seiko 5639-147

The Seiko 5639-147 represents an important milestone in Seiko's 1991 lineup. Powered by the 5639 caliber with 17j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-6d4369926d27]

Also known as: Bullhead, Navigator

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Cream
Jewels
17j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1991

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seikata-wm-6d4369926d27