dla poparcia przypomnę odpowiedź z IWC : Thank you for your message and for your interest in IWC Schaffhausen. We are delighted to read you are the proud owner of an IWC Aquatimer Automatic (ref. IW392001). In response to your inquiry, we are pleased to inform you that your timepiece is equipped with an ETA movement. Since the beginning of 2011, ETA SA has been supplying IWC with fully assembled movements, manufactured to our standards and specifications. As all the modifications required by IWC have been integrated into ETA SA’s production processes, these movements feature all the latest developments and comply with IWC’s highest quality standards. Every single movement is subjected to IWC’s comprehensive and exacting testing procedures in the IWC laboratories. This means that the movements have to achieve a precision of 0/+7 per day, ensuring that the watches do not run behind and only run ahead by a maximum of 7 seconds per day. Kind regards from Schaffhausen, IWC Concierge Services