Seiko Cal. 3879 - 997

Seiko 3879-997

The 3879-997 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3879 caliber with 17j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-d44d42221949]

Also known as: Turtle, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
17j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1975

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seikata-wm-d44d42221949