Tag Heuer Monaco Crystal Gasket

[Chrono15]

Hello all,

I have a Tag Heuer Monaco. Newer edition.  

 

The crystal gasket is a bit confusing to me.... There is no channel for it to set in, and it doesn't fit on the crystal itself. 

Am I correct in thinking that the gasket is placed, and then you place the crystal on top as shown in the attached photo? I assume when you place the bezel on and it screws in from the back that the crystal just smooshes the gasket..although I'm not sure how this would retain a watertight seal. 

Any insight is appreciated!

Edited November 19, 2020 by Chrono15

[Tudor]

I think you’re right. 

Use a new gasket and VERY LIGHTLY lube it with Molykote 111. Too much lube and it’ll creep up the crystal. Like wipe off half of what you might use on a case back gasket. It should just be darkened by the silicone- not really shiny with it. 

If the gasket is used/old/compressed it is likely to leak. I think these are only 50 or maybe 100 meter depth rating (for this reason) anyway. A round o ring may work if you can wrangle it into position before placing the crystal. I’d probably uncase the movement so I could check the cleanliness of the crystal before buttoning it up. 

Edited November 19, 2020 by Tudor