Waterman squeeze converter

[InkyProf]

Can the sac in a 1980s French-made Waterman squeeze converter (original to a Man 100) be replaced? If so, any tips on disassembly?

[thx1138]

On 3/11/2026 at 5:09 AM, InkyProf said:

Can the sac in a 1980s French-made Waterman squeeze converter (original to a Man 100) be replaced? If so, any tips on disassembly?

 

This style converter?

This is from one of my old CF Waterman pens.

 

 

[InkyProf]

55 minutes ago, thx1138 said:

This style converter?

 

Thanks for replying. The metal body looks like what I have, yes; but mine has (or: had; see below) a tapered rubber plug at the mouth that allows it to fit into Waterman pens that are supposed to take "standard" (post-C/F) Waterman converters, like the Man 100. I can't tell if yours is like that or not because of the shadow at the open end. I don't have a C/F pen to which to compare anything, but I thought C/F carts and converters were straight cylinders at the mouth, not tapered. I am very likely misremembering, though.

 

In any case, I tried to remove that rubber plug, and I did, but I think I almost certainly damaged it in doing so, because now I'm left with a plug that seats very shallowly in the mouth of the housing, a small cylindrical metal sleeve that appears to have been used to compress the mouth of the sac against the inside wall of the housing (?), the housing, and the pressure bar. I see nothing to which a new sac could be attached (and no indication of how the old one WAS attached) leading me to think that I tore something essential in disassembly, which I regret all the more if what I had was in fact a C/F converter!

 

All I can think to do is to try to use the business end of an empty Waterman cartridge (not a C/F, in my case) to replace the plug, and shellac a sac to that, but that would depend on the cartridge fitting snugly into the housing. I don't want to risk a situation in which, when I try to remove the converter from the pen, the housing comes out and the plug stays behind and has to be tweezed or otherwise coaxed out of the section.

 

But if I'm missing something, I'm all ears. And I'd love to know the procedure I should have followed, in the unlikely event that I ever get to do this again.

 

Back story, if you're interested: all of this arose because the pen I'm trying to use, a first year Man 100 with the plastic rather than the brass section threads, is supposed to work with standard modern Waterman converters, as my Man 100 Opera does. (The squeeze converter I have came with the first-year Man 100, and fit it snugly, but was obviously unusuable, as the sac was visibly dry and cracked.) I bought a NOS Waterman converter with a ridged (or possibly finely threaded) metal band near the mouth, which was advertised as working with all modern Waterman pens, but it didn't work with either of these Man 100s, so I returned it. I now have a different NOS Waterman converter with a smooth metal band near the mouth, which works great in the Opera but is just a little too loose for comfort in this pen: functional, but feels like it could fall out if knocked or shaken. Assuming I've now lost any chance of repairing the old squeeze converter, I'll try one of the current-production ones without the metal band, or I'll just refill cartridges.

[USG]

Ahoy Inkus

 

This sounds familiar.  I had 2, only found one.  Came with my Patricians.  Now I'm not sure what pen it's from.

 

Is this it?

 

 

 

[InkyProf]

50 minutes ago, USG said:

Ahoy Inkus

 

This sounds familiar.  I had 2, only found one.  Came with my Patricians.  Now I'm not sure what pen it's from.

 

Is this it?

 

 

 

 

Yep, that looks like it. I'm in the library so don't have it here; mine might be longer? But it might not. And the plug is exactly like yours. (So a Patrician would make sense: same era as the Man 100s).

[USG]

28 minutes ago, InkyProf said:

 

Yep, that looks like it. I'm in the library so don't have it here; mine might be longer? But it might not. And the plug is exactly like yours. (So a Patrician would make sense: same era as the Man 100s).

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