Seiko Cal. 3879 - 406

Seiko 3879-406

This Spring Drive model from 1977 features a 37mm Stainless Steel case. Powered by the 3879 caliber with 26j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-b79aa527e251]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
10.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Burgundy
Jewels
26j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1977

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