Seiko Cal. 3861 - 200

Seiko 3861-200

This Spring Drive model from 1977 features a 46mm Hardlex-Coated Steel case. Powered by the 3861 caliber with 23j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-c2cdc67be3c0]

Also known as: Monster, Silverwave

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
110m
Dial Color
Burgundy
Jewels
23j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1977

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