The world of vintage watches is filled with fascinating markings, subtle details that can reveal a watch's history, authenticity, and value. One such marking often encountered, particularly on mid-20th-century timepieces, is "Plaque Or G" or similar variations, frequently accompanied by a micron measurement (e.g., "Plaque Or G 20 Microns"). This article delves into the meaning of this marking, specifically in the context of Breitling watches, exploring its implications for authenticity, differentiating it from similar terms like "gold-filled" and "gold-plated," and offering guidance for those interested in acquiring or understanding vintage Breitling watches bearing this inscription. The initial query about a Cartier watch with this marking is a red herring; the "Argent" marking on a Cartier tank refers to sterling silver, not gold plating. The focus here remains on Breitling timepieces.
Is this marking Gold Filled or Gold Plated?
The marking "Plaque Or G 20 Microns" (or similar variations) indicates a gold-plated watch, not a gold-filled one. While both involve a layer of gold applied to a base metal, the crucial difference lies in the method and thickness of the gold application. "Plaque Or" is French for "gold plate," clearly indicating a plating process. The "20 Microns" specifies the thickness of the gold layer. This is a relatively thin layer compared to gold-filled watches.
Difference between gold filled and gold plated?
The distinction between gold-filled and gold-plated watches is critical for understanding their value and durability. Let's clarify the differences:
* Gold-Filled: In gold-filled watches, a sheet of gold is mechanically bonded to a base metal (usually brass or nickel silver) under high pressure and heat. This creates a substantially thicker layer of gold than plating. Gold-filled watches typically have a higher karat gold content (e.g., 10K, 12K, or 14K) and are significantly more durable than gold-plated watches. The gold layer is a substantial part of the overall material. The gold content is usually expressed as a fraction (e.g., 1/20 12K gold filled means 1/20 of the watch's total weight is 12 karat gold).
* Gold-Plated: Gold-plating involves applying a thin layer of gold to the base metal through an electrochemical process. The gold layer is significantly thinner than in gold-filled watches. The micron measurement (e.g., 20 microns) indicates the thickness of this gold layer. Gold-plated watches are generally less durable and the gold layer can wear off over time with regular use. The base metal is fully exposed once the gold wears away.
Any info on this old watch?
Information regarding a specific Breitling watch with "Plaque Or G 20 Microns" marking requires more details, such as the model number, case design, movement type, and any additional markings. However, some general observations can be made:
* Period: Watches with this marking typically date from the mid-20th century, most likely the 1950s-1970s. The "Plaque Or G" nomenclature was common during this era.
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