1Premium Materials: Made of alloy, the watch movement mainspring is firm, durable and has a long service life. 2Wear and Impact Resistant: Adopts sophisticated production technology, which is wear resistant, impact resistant and not deformed. 3High Accuracy: The clockwork movement mainspring replacement has high accuracy and can be perfectly matched. 4Perfect Replacement: The main function of the main spring of the watch movement is to replace or repair the old or damaged main spring. 5Professional Tools: Professional accessories for watch movement, applicable to watch repair shops and repair providers.
