We were recently asked to repair a Cartier Pramast Tank.
This time, it hadn't been overhauled for a long time, so it was overhauled.
The watch was spinning freely even when wound by hand, so we replaced the mainspring.
The mainspring in a mechanical watch is like the battery in a battery-powered watch.
This is the largest consumable part in mechanical watches,
It will need replacing eventually.
However, like batteries, the time it takes to replace them varies from one device to another.
It is not possible to say that this happens once every XX years.
Because these are such parts, we use them thoroughly until they are usable.
I plan to replace it if it gets damaged.
Even the cheapest springs cost around 6,600 yen, so
It would be a waste to replace it every time you overhaul it.
However, the mainspring may break after an overhaul, so
I'm very sorry, but we will only replace the mainspring.
In that case, we will charge you the actual cost of the parts and some time,
Please rest assured that we will respond appropriately.
This time
Overhaul ¥16,500
Spring replacement ¥8,800
Total ￥25,300 including shipping
We would appreciate it if you could request an overhaul as soon as possible to avoid major repairs.
Even if it does eventually stop, I'll fix it somehow (laughs).
But please ask us for regular maintenance!
