Prototype/ pre-release Clean Factory Oyster Perpetual 39 114300
Nah just kidding lol. This is a 114300 superfranken that was built using a clean factory Explorer 214270 as the base watch. From my observations, the gen 114300 and 214270 share pretty much the same mid-case, movement, and bracelet (except for the clasp).
This is the build strategy that I used because arf (and apparently the same for ewf and bp/ gmf) discontinued the oyster perpetual 114300.