Enquiry about Eterna.Matic Centenaire 1956
Start of production 1956 to celebrate 100 year Eterna !
Movement 4404492 with the calibre 1428 U based at 2430/33 with a Bph of 18.000
Complete serviced, lubricated ,regulated etc. with a new spring for a great power reserve
Original signed crown, this watch has a very seldom find 14 ktr goldfilled case no:948998
wich are the correct numbers for this watch.Original strap, signed buckle
Gold-filled jewelry, also known as “rolled gold” or “rolled gold plate” is composed of a solid layer of goldbonded with heat and pressure to a base metal such as brass. Some high quality gold-filled pieces have the same appearance as 14 karat (58%) gold. In the USA the quality of gold filled is defined by the Federal Trade Commission. If the gold layer is 10 kt fineness the minimum layer of karat gold in an item stamped GF must equal at least 1/10 the weight of the total item. If the gold layer is 12 kt or higher the minimum layer of karat gold in an item stamped GF must equal at least 1/20 the weight of the total item. The most common stamps found on gold-filled jewelry are 1/20 12kt GF and 1/20 14kt GF. Also common is 1/10 10kt. Some products are made using sterling silver as the base, although this more expensive version is not common .
Gold-filled items are 50 to 100,000 times thicker than regular gold plating, and 17 to 25,000 times thicker than heavy gold electroplate (sometimes stamped HGE or HGP—usually found on cubic zirconia “cocktail rings”).
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