Seiko Cal. 3860 - 556

Seiko 3860-556

Released in 1968, the Cal. 3860 with design code 556 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-bc12dff079c2]

Also known as: Sumo, Goldfeather

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
10.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Burgundy
Jewels
33j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1968

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