16520 franken daytona case and mvnt parts question

[Defender110]

thank you for your time and consideration of these notes in advance..

1. the elprimero as finisihed by rolex used diff. hand post sizes.. i have gen hands to fit to a elprimero (ebel 134) does anyone have the correct part numbers for the rolex parts i need to upgrade the movement? a source for the parts? do i need all six pieces or did rolex leave some of these movement pieces stock?

2. what is the diff between MBW/MBK 16520 case and jeweleryandwatch case????? i have done a search and can find no defin. answer! except that the jn'w case is 1650usd !! please point me in the right direction... and also what dealer is sourcing MBW/MBK watches/parts now-a-days???? thank you very much in advance.

[indyberetta]

I believe the MBW case to fit the El Primero movement does not have any serial numbers or model numbers on it. I believe the jaw case does.

[flex]

Acutally both case does not have any serial number (I had them engraved with gen serial number & proper Rolex engraving afterwards). On both of my 16520s they look exactly the same - i suspect they are from same source.

I believe the MBW case to fit the El Primero movement does not have any serial numbers or model numbers on it. I believe the jaw case does.