Thread: LeCoultre questions

I am back after a years hiatus due to medical adjustments. About a year ago, Geezer asked about screw sizes for the blade screw. There were several measurements thrown around, but question is did anyone find out what the die size was (TPI, pitch and size)?

Second question, on the very fine lapping films,3�� or 1�� which side -- the slick or dull side is used?

Thanks in advance.

Welcome back my friend.
I found some small metric screws & I have not ordered them yet to see if they will work. I needed a longer screw in one of my Lecoultre's awhile back so I swapped one out of another one & used it because it was a little bit longer. It worked plus the shorter one worked in the other razor.
I got out my metric thread pitch gauge & the closest I could get was .45mm pitch. Thickness of the screw I just measured is 2.43mm. I just got out another Lecoultre & the thread pitch seems to be .45mm or very close to it just like the other one. The thickness of the screw is 2.38mm. I have a few Lecoultre's, a 7 day set, a 4 day set & a couple 2 day sets.
Your question probably belongs in the Razor section of the forum.

Originally Posted by OldTraf

I am back after a years hiatus due to medical adjustments. About a year ago, Geezer asked about screw sizes for the blade screw. There were several measurements thrown around, but question is did anyone find out what the die size was (TPI, pitch and size)?

No luck yet on the threading. LeC was a watch maker and my local clock shops have not had a screw plate that gave an answer to the question.

Second question, on the very fine lapping films,3�� or 1�� which side -- the slick or dull side is used?
Thanks in advance.

Dull side is the correct one.
~Richard
Glad to have you back among us! A few of us got adjusted in the last year or so.

Thanks, reason I asked here was the original discussion occurred here. Guess I will have to cut some brass and see if they fit. I didn't want to try some LeCoultre screws in the small dies I have.

Yup, smooth side down. Lowes sells a 10X3 in glass tile for about 5 bucks that once lapped flat, with a diamond plate, (quick & easy to do) makes a great substrate for film.

You will see the high spots.

A piece of copy paper under 1um film makes a great finish, polishes the edge of a 1um edge. 1um over paper is a very comfortable edge.

Diamond film is not 10 times better than Aluminum Oxide film, in fact not a better finish at all, certainly not justifying 10X the cost.

Gave the LeCoultre a run tonight after polishing, lapping on 3 micron, then one micron and finally on plain leather. Very smooth shave WTG and ATG, I like the blade shape, reminiscent of my Gratian and cast steel Londres. Couple of weepers, alum bloc was not painful, witch hazel, Pinaud Clubman and finished with Nivea sensitive post-shave balm.

No blood on face or clothing.

Originally Posted by OldTraf

Thanks, reason I asked here was the original discussion occurred here. Guess I will have to cut some brass and see if they fit. I didn't want to try some LeCoultre screws in the small dies I have.

No problem at all. I have done similar & it was moved. No big deal though.
Do you need a screw for a Lecoultre razor?

Its not a LeCoultre. I don't have it at hand but its one of the French copies. The screw is damaged but the threads in the razor are still good. It needs a lot of work to get shave ready. I want to try my hand a cutting a screw that will work. Thanks for the offer.

Oh, okay. I have another make so I took the screw out of it & although pillar looking, the pitch was different from the Lecoultre so no telling what threads are in it. I have another 2 day set but a different maker, Veritable Vincent & it has a screw around a .60mm pitch & 2.8mm diameter. I guess if you could get your hands on some metric screws & they them carefully so you don't damage the threads on the razor. If you find one that fits, cut the head off 7 make a small slot in it for the screwdriver. That is how all of these are, with no heads on them. Kinda like a long set screw.

Break off a round toothpick and use it to check the pitch and diameter of the threaded hole. Just twist it into the hole and it will leave marks where the thread is at the root diameter. It may also tell you the outside diameter of the thread.
~Richard