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Franken 1680- MBW case- gen insert won't fit!


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I've got two gen inserts- neither will work on my MBW case:

Gen insert measurement: inside Diameter -- 30.70 mm

Outside Diameter - 37.57 mm

MBW case:

This is an older MBW 'Polex' 5513 case.

in bezel for insert has a diameter of 36.6mm

The crystal Outside Diameter is around 30mm

From these measurements it looks like the diameter of the insert is over 1mm too large and the inside diameter is enough oversize that there would be an unsightly gap between crystal and insert. Has anybody else run into this problem when modding an MBW? Possible solutions?

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You've got the wrong inserts! The 5513 insert is smaller and the ones you have are the 16800/16610 inserts. The 315-5513 will fit the 5513/5512/1680/1665 watches and the 315-16800 is for the later model sapphire date subs. There's also different inserts for the 14060 and the 16660/16600 SD's.

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Mine has a genuine 1680 w/ tritium pearl. bought it off the VRF a couple of years ago. Fits the old MBW bezel fine.

yeah- it's probably the smaller size- they apparently fit fine. Just purchased a new insert- we'll see.

The DW is having some issues- it's a ubi DW and not quite flat. I'm going to have it glued onto the ETA DW as an overlay. Should i be worried?

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Rolex Insert Sizes (for future reference =D)hmm, can't keep the formatting but watever

Old Sub ////// New Sub

315-5513 5513 5512 1665 1680 9401 //// 315-16808-81 16808 / 16618

Outside Diameter: 36.55mm ////Outside Diameter: 37.65mm

Inside Diameter: 30.3mm ////Inside Diameter: 30.7mm

Old GMT New GMT

315-16750-1 16750 / 1675 /1670

315-16700-1 //// 16700

315-16753-1 16753 GOLD //// 315-16760-7 16760 / 16710

Outside Diameter: 37.75mm //// Outside Diameter: 37.65mm

Inside Diameter: 30.2mm //// Inside Diameter: 30.7mm

New Style Sub no date //// New Sea Dweller

14060 //// 16660

Outside Diameter: 36.55mm ///// Outside Diameter: 36.65

Inside Diameter: 29.7mm ///// Inside Diameter: 29.70mm

Edited by praetor
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