B-23 SYSTEMS ROSKOPF

ORIGEN : SWITZERLAND,ANY 1.890.(CIRCA)

EXHAUST : Cupillés Anchor ; volant mono-metal.lic,

flat spiral.

SINGULARITIES: The ROSKPF watchmaker,will invent the vertical cupillés anchor system , this greatly simplified the cost of the watch,he 1.860 ,he marketed it at the price of 20 French Swiss. It is estimated that a total of 20 million units.from 1.860 al 1.889.

BALL : Gold and silver metal,black Arabic numerals inside

A green enamel circle. Louis XVI style pins.

BOX : of brass,silver. Diameter 45 mil.limetres.i 14 of thickness

with three covers.