Curious 51 Dj / Wing Sung 601 Compatibility

[Flounder]

Like most of you, I was mildly surprised when the rash of vacumatic 51 clones appeared a couple of years back (and even more surprised when the revised 601 with O rings instead of a diaphragm was released).

 

It's taken the Covid-19 lockdown to let curiosity to get the better of me, but the thread and outer diameter of the blind cap are practically a perfect fit for the 51's tassie and jewel. It's just bizarre to me that they would bother copying the thread, especially.

 

 

[IThinkIHaveAProblem]

Neat!

 

I wonder if it’s due to existing tooling. Or maybe “why reinvent the wheel when Parker already did it right the first time”

 

Or maybe it’s just an industry standard threading?

 

Either way, thanks for the info!

[Glenn-SC]

Maybe because they can't come up with an original idea and had to copy a proven, extremely popular design?

[pajaro]

So, can you use a 51 diaphragm on a 601?

[Flounder]

So, can you use a 51 diaphragm on a 601?

I don't know about that, Pajaro. I was curious about the version that uses O rings in place of the diaphragm, so that's what I bought.

[Flounder]

Maybe because they can't come up with an original idea and had to copy a proven, extremely popular design?

Possibly, but they'd have to source a DJ in the first instance. Pretty much any thread would have done the job!

[pajaro]

Anybody had a 601 break? It seems pretty solid to me, but many pens I have bought of recent manufacture have had issues.

[IThinkIHaveAProblem]

Ill add this as i hold my teal blue DJ WS 601 in my hand and look at the OP pictures...

 

Parker's Jewel and tassie is MUCH nicer than the one WS went with... that stepped design on the tassie looks so good comparatively.

 

Makes me want a DJ "51" even more than i already did...

 

OUCH, my wallet hurt just from saying that...

[IThinkIHaveAProblem]

i have a demonstrator 601 that in the right light shows some cracks in the barrel. but thats likely my fault as i got a little aggressive cleaning it out one day

 

that said, it still works fine

 

Anybody had a 601 break? It seems pretty solid to me, but many pens I have bought of recent manufacture have had issues.

[Flounder]

Anybody had a 601 break? It seems pretty solid to me, but many pens I have bought of recent manufacture have had issues.

Mine's fine, but it's practially new still.

[donnweinberg]

I recently got two of the WS 601 clear demonstrators and have one of them inked up with Waterman's Blue-Black. I also inked up a Parker 51 vacuum-filler with the same ink, and a Parker 51 squeeze-filler with Waterman Florida Blue ink. I want to compare the three at some point.