Seiko Cal. 6642 - 975

Seiko 6642-975

The 6642-975 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6642 caliber with 33j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-877e9fe8680e]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
15.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Silver
Jewels
33j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1976

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seikata-wm-877e9fe8680e