Help needed with an oyster patent crown tube size

[davdew]

I have a Rolex oyster patent crown that needs a tube.

The crown shaft is 2.95mm diameter. I think the crown thread is thread is either M4.5 or M4.3mm. Hard to tell with verniers

Any information would be great.

Thanks

Pics

[Yoda]

The crown itself looks a bit battered, how about sourcing a set?

[TimemiT]

eBay has a few available ... crowns as well

https://www.ebay.com/itm/RARE-Rolex-Bub ... 0005.m1851

[TimemiT]

I asked a WS on Ebay about the thread ... here was his answer ... not sure if it makes sense

206, 9 3/4 t0 10 1/2

this guys has similar crown? https://www.ebay.com/itm/FD9-RARE-ROLEX ... 0005.m1851

[TimemiT]

I think it may be the lighting ... it makes the crimping look distorted

that's a crown from about 1940's? ... is the spring in good shape?

The crown itself looks a bit battered, how about sourcing a set?

[Yoda]

I think it may be the lighting ... it makes the crimping look distorted

that's a crown from about 1940's? ... is the spring in good shape?

The crown itself looks a bit battered, how about sourcing a set?

You are most likely right there.

[earloflondon]

Omg. What a treat

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[earloflondon]

Someone should replicate these drum type oyster crowns

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[Kp0y]

Someone should replicate these drum type oyster crowns

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Just ask River. He have OP crowns for sale.

[davdew]

The crown itself looks a bit battered, how about sourcing a set?

The Crown is actually in pretty good shape. Lighting on the photo isn’t flattering.

The spring and clutch are like new.