SAFE & SECURE SHOPPING. You may also like. 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. Return items should include the original packaging and all accessories.