Manufacturing the hands concludes with coating the luminescentsubstance, followed by a visual check.
指针制作完成后，涂上一层夜光物质，然后进行外观检验。
2
The Breitling symbol requires 3 successive blanking operations. The tip of the hand is hollowed to receive the luminescentsubstance.
百年灵徽号需经过三道连续冲切工序。指针尖端被镂空，以便嵌入夜光物质。
3
The layer including a luminescentsubstance has a composite material which includes an organic compound, and an inorganic compound showing an electron donating property to the organic compound.