What is chronometric dating

09 Apr

The memo displayed below applies to modern watches (from 1991 onwards), and may not be perfectly accurate.

Examples of Breitling 6-digit reference numbers: ).

This watch, not intended for series production, was greeted with such enthusiasm that the decision was taken to create a watch with all the same qualities on an industrial scale.

It started with the movements, which were all self-winding chronometers that had received the mention of “Especially good results” during testing.

Every model inside a production series gets the same reference number, meaning that its design, material, and movement type are exactly the same (aside from the dial color, sometime the hands, and of course the band).The serial number, in addition to the reference number, ensures that no 2 watches will bear the same numbers, even if they are physically identical.Reference and serial numbers on the case-back of a Breitling Navitimer Please note that over the years, Breitling had many different ways of choosing reference numbers.In watchmaking, the name Constellation has been closely linked with the art of creating luxurious precision watches at the highest level since 1952, when Omega launched the family.It has always been defined by the combination of sumptuous yet elegantly refined cases and dials with ultra-precise movements.Archaeology also examines many of the same topics explored by historians.But unlike historythe study of written records such as government archives, personal correspondence, and business documentsmost of the information gathered in archaeology comes from the study of objects lying on or under the ground Archaeologists refer to the vast store of information about the human past as the archaeological record.If archaeologists working in southern Arizona are right in their assumptions, some adobe ruins showcased in Tumacácori National Park may not be what the pamphlets and tour guides say they are.Instead, less than a hundred meters away may sit the actual site: the ruins of the 1751 mission of Guevavi, the last Jesuit mission built on the Santa Cruz River before the Catholic order met with native revolt and eventual expulsion.The line would soon develop into a series of watches which were finished to different degrees.The Constellation available in steel or gold, the Constellation Deluxe only available in gold with applied gold indexes on the dial and finally the Constellation Grand Luxe, which was available in gold and platinum with corresponding dial and the so-called "Brick link" bracelet.