China Made Dandong 7750 Mechanical Movement Date At 3 Black DiskFeature: 100% brand new and high quality. Repair parts for watch movement parts. The product material is durable and has a long service life. Can be used as a spare part to facilitate your replacement of the movement. The movement is workable and will be tested before shipping. The watch hands are just for display and might not be packed in the parcel. Small Second At 3 9 frequency: 21600 Package Included: 1X watch movement 1X watch stem

1 1/2 round

Battery: Two AAA

Compatible with: Ronda 5030

the internal diameter is about 19mm

Simple calibration for stones of various sizes

Watch case diameter:  about 23

Automatic bi-directional rotation time is 0-60 minutes

Dial size: 28

Case Diameter: 45mm

Applicable dial diameter: 28

TOTAL 9 SIZES & 18PCS

Suitable for china made 2813 movement with 2 big hands