some more details as for Waltham and Wyler quality:
Waltham never made battery operated watches as it went out of (watch) business in 1957 with some more years of legal and ownership issues.
here are some facts from experts:
http://www.thewatchguy.com/pages/WALTHAM.html
some details from Waltham city at bottom of page:
http://www.waltham-community.org/WalthamWatch.html
and the website of today - a typical modern Swiss company producing Waltham branded watches:
http://www.waltham.ch
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Wyler doesn't have much information available aside being a Swiss company but their current website is typical of a company set up today by somebody that purchased the rights to the label. just a single phrase of history without any facts or details.
there are some basic signs that prove that Wyler is just an incarnation:
http://www.europastar.com/europastar/ma ... 1003576873
"Baselworld 2007 saw a different Wyler Genève: an entirely new identity, new chronograph, new tourbillon and a striking new stand for the exhibition. One thing that will not be changing however, is the company’s continuation of founder watchmaker Paul Wyler’s quest to build the most robust watches possible."
"The renewal of Wyler Vetta"
http://www.allbusiness.com/retail-trade ... 455-1.html
"After the trying era of the quartz revolution, Wyler was purchased by Binda, who re-launched the brand in 2002."
http://www.luxurywatches101.com/luxury- ... vetta.aspx
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There are many other modern brands that have nothing in common with their own history - Breitling, Blancpain, Zodiac, Glashutte and many more.
these were dead brands for a few years or decades until a clever businessman brought them back to life. They started a new life either as cheap Chinese-made watches or top-shelf designed for the rich and famous.