IWC watches can only be fixed and repaired in their service centers or through their authorized retailers in their stores. If for some reason you cannot find any service center or retailer, you could seek assistance through their official website and they will provide proper help.
IWC stands for International Watch Company. IWC Portofino is a watch created by a man named Florentine Ariosto Jones in Schaffhausen, Switzerland in the year 1868. The IWC Portofino Collection can be found today at the International Watch Company in Switzerland.
The IWC is a top of the line, luxury watch well known for its beautiful detail, smooth movement and top class finishing.
I think you need to bring it to a jewelry or watch repair store to repair your IWC big pilot watch, or you can search how to fix it yourself, but I think it will be a lot trouble.
You can replace a watch battery at various locations, including jewelry stores, watch repair shops, and some department stores that have watch services. Additionally, many electronics stores and big-box retailers with a jewelry section offer battery replacement services. Some local pharmacies also provide watch battery replacement. If you prefer a DIY approach, you can purchase battery replacement kits online or at hardware stores.
iwc aquatimer
IWC pilot is a well known branded watch manufacturer which make aviator style watch to sell. These can be found to buy on websites such as www.jomashop.com.
IWC Flieger Chronograph 3717
The IWC online stores sell a large variety of their watches. If you do not want to purchase online you could also try the Watch Gallery, Prestige Time and Jomas Shop.
The only way to be sure is to take it to a watch repair shop.
It requires a watch battery, but there will be one in the watch. You'll only have to worry about replacement when the time comes.
IWC Big Pilot watches are produced in Switzerland. The Swiss have been manufacturing fine watches for centuries. It should be a very well made watch which will last for years of service.
Govberg Watch Repair seems to be the most popular place to get your IWC Portofino watch fixed. I'm sure that your local jeweler could also get the parts needed.