27-Jewel 30mm Chronograph Automatic Watch Movement Replacement For ETA 7753 775

  
Chronograph counters 60 seconds / 30 minutes / 12 hours. Chronograph subdials are at 3:00, 6:00, 9:00(small seconds location). Frequency: 28,800 vibrations per hour. Soft 22mm Width Watch Band Strap Bracelet For Samsung Gear S3 Smart Watch.