How To Use Chronograph and Tachymeter in a Watch

How to use a Chronograph and Tachymeter in an analog watch? The chronograph is a stopwatch and the tachymeter helps calculate speed, distance, etc.. Right after the chronograph complication began …


casio ef 503

Casio Speedmaster Edifice EF 503 Battery Went 4 years

Today one of our clients brought his Casio Speedmaster EF 503, Edifice Series,  to replace its battery. While opening the watch he told me that he had changed its battery …


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