30mm 27-Jewel Automatic Watch Movement Repair Part For ETA 7753 7750. Specifications: Diameter: 30mm/1.18in Height: 7.9mm/0.31in Jewels: 27 Frequency: 28,800 vibrations per hour Chronograph counters 60 seconds / 30 minutes / 12 hours Chronograph subdials are at 3:00, 6:00, 9:00(small seconds location) Hours, minutes, small second Package include: 1 Automatic Watch Movement. We recommend that you try again after 3-4 days. Always believe we can figure things out with communication, if it comes to return, the pacakge must be intact and the same as you receive. We will reply you ASAP. We strive to answer all questions and resolve any problems as quickly as possible. We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues. We care about our valued customers, and will always try to help you.