Seiko Cal. 6639 - 207

Seiko 6639-207

This Kinetic model from 1977 features a 42mm Hardlex-Coated Steel case. Powered by the 6639 caliber with 23j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-c86f374a05f6]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
14.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1977

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