Gold Bracelet For 1550 Perpetual #78351 Genuine?

[CJS57]

Just got this in on approval. Correct bracelet for my 1550 Gold shell Perpetual. Looking for opinions of those with more experience, is it genuine Rolex? Nice features are removable links have built in spring loaded pins for easy link changes. The solid end links have a mounting "ledge" and open spring pin slots for easy mounting to the watch head. Temporary pin at the clasp just for fitting. It feels like quality and fits the watch head perfect. I will need 3 more links to make it 210mm. If anyone knows where to look for them. But mainly is it genuine Rolex? Thanks!