Seiko Cal. 3879 - 612

Seiko 3879-612

The Seiko 3879-612 represents an important milestone in Seiko's 1970 lineup. Powered by the 3879 caliber with 21j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-474999c3bdd1]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1970

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seikata-wm-474999c3bdd1