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Modello:	Ball Roadmaster GMT	Ultimo aggiornamento:	Sabato 15 Giugno 2024 18:46
Nome utente:	boardsandfilm	Luogo:	Sconosciuto
E-mail:	Sconosciuto	Commento:	Nessuna recensione trovata

L'annuncio è in Inglese. Traducilo in italiano?

Ball Roadmaster Challenger 18 COSC Ltd. Edition 111/1000 1200 USD CONUS Open to trades. No Seiko's please. Comes with OG Stainless bracelet, rubber Barton strap, and Strapcode Milanese straps, as well as various Natos. [PHOTOS and TIMESTAMP](https://imgur.com/a/OjnIg38) 80 Hour reserve! **mMechanical automatic** movement Ball RR1102-C (based on ETA 2824 or Sellita SW200) which has a frequency of 28800 semi-frequencies per hour and has **COSC certification** 200 M Sapphire Anti Reflective 43mm case, 21mm strap, 13.3mm height **Tritium luminescence H3 on hands and indexes** Has original owner's last name engraved on the back, "Landry" but it's so well done I thought it was the name of the watch or something.

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Più elevato:	$2.100	Più basso:	$1.100
Mediano:	$1,699,50	Scarto quadratico medio:	±$304,94

Stima privata del valore $1.450 — $1.787


	Fondazione:	1891
	Sito web:	http://www.ballwatch.com/global/
	Paese d'origine:	United States

BALL Watch Company SA is an American watch company based in La Chaux-de-Fonds, Switzerland. It was founded in 1891 by Webb C. Ball in Cleveland, Ohio, and is linked to American railroad history.

Before the development of railroads across the United States, there was no need for a standardization of time or any real accuracy in time keeping. Each town kept its own local time, based on the position of the sun. When trains began to connect really distant cities, it got problematic and difficult to avoid collisions. Moreover, there was no policy nor standards for the watches used by the railroad employees.

On April 18, 1891, a head-on collision between two trains in Kipton, Ohio resulted in several human deaths. At the time, trains were using the same lines in opposite directions and had to cross each other at defined crossing points. That day, one of the conductors’ watches stopped for four minutes leading to the fatal collision.

In order to make train rides safer for travelers and employees of the railroads, Webb C. Ball was designated “Chief Time Inspector” and set up tests and standards for all watches used on the trains. Ball’s criteria of accuracy and reliability were so strict that they later inspired others like the Swiss Official Testing Institute (COSC).

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