Seiko Cal. 5642 - 669

Seiko 5642-669

The 5642-669 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5642 caliber with 28j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-9d9f906f2c5f]

Also known as: Silverwave, Navigator

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1987

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