Which gasket do I need for 7020 tube and 702 crown?

[Manray]

Hello,

I am looking to buy new gasket for a 7020 tube and caseback for tudor bivintage but I am not sure on which measurement to pick

Generic Rolex® Crown Gasket

Maintain an airtight seal when repairing Rolex® watches by using the Rolex® watch gaskets to ensure the repaired watch reamins water resistant.

www.esslinger.com

Generic Rolex® Case Back Gasket

Use generic Rolex® watch gaskets when you repair genuine Rolex® watches. The watch case back will maintain its airtight, water resistant seal.

www.esslinger.com

 

[alligoat]

Rolex tubes Datejust, submariner GMT Daytona replacement repair part

Rolex tubes with gasket aftermarket replacement repair part for submariner, GMT, daytona, datejust, ladies, mens watches

www.watchmaterial.com

you can also try ofei.com,
WSO990 sells a 7030 tube for around $18 dollars which come with gaskets. These might fit.
Google is your friend!