Miyota 8215 movement to modify and add the tourbillon

SANYIN Based on Miyota 8215 movement to modify and add the tourbillon function module. 💯
As manufacturer of mechanical watch,we have been modifying the movement to bring more inspiration for watch project .
Attached photo are our good answer about it .
Unique and stylish movement function create more possibilities for watches.
Function : 6 o'clock Tourbillon ,three Hands
Thickness:5.67mm
Diameter:31mm
Jewelry:25
Frequency:28800
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