Locoboy5150
Tyme Machine
- Joined
- Aug 12, 2014
- Messages
- 3,044
Yesterday I replaced the battery in my Invicta Excursion with an ISA 8172/220 quartz chronograph movement in it. I know that ISA movements have a really bad rap overall but so far I have not had any problems with them. I noticed that ISA did a great job of covering up the two coils in the 8172/220 to prevent them from being accidentally damaged during servicing.
http://calibercorner.com/isa-caliber-8172/
Many people have ruined other quartz movements by doing simple battery changes and accidentally nicking the coils with a tool. That's easy to do, especially with the fully exposed coil in the Ronda 515 movement and its extremely close proximity next to the end of the battery contact strip.
http://calibercorner.com/ronda-caliber-515/
It's nice to see that at last ISA thought of that problem and did something about it. It didn't save them from going out of business though.
http://calibercorner.com/isa-caliber-8172/
Many people have ruined other quartz movements by doing simple battery changes and accidentally nicking the coils with a tool. That's easy to do, especially with the fully exposed coil in the Ronda 515 movement and its extremely close proximity next to the end of the battery contact strip.
http://calibercorner.com/ronda-caliber-515/
It's nice to see that at last ISA thought of that problem and did something about it. It didn't save them from going out of business though.