citizen 6870

How To Set The Time In A Citizen 6870 Movement

The Citizen 6870 Movement is a quartz analog movement which feature a variety of functions. It comes with eight modes consisting of time, alarm 1, alarm 2, chronograph, 0-position check, …


Citizen Automatic Chronograph GN-4-S 67-9119 Vintage

A client brought a Citizen Automatic Chronograph GN-4-S 67-9119 watch to me, he said he got it since 1979 and still working fine. He never did a servicing in it …


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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