Seiko Cal. 3857 - 556

Seiko 3857-556

This Automatic model from 1980 features a 46mm Gold-Plated case. Powered by the 3857 caliber with 27j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-2ad8479d88b2]

Also known as: Monster, Arnie

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
70m
Dial Color
Black
Jewels
27j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1980

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