How to change wash on leaking basin mixer?

My bathroom mixer is leaking by the hot water side that we turn. I cannot find any screws on the mixer to open and change the washer. Any idea how to open it without scratching it.

Below is a link to the picture

https://photos.app.goo.gl/eZNbdBNrRbxouNY86

Advice from 1 local tradesperson

Its not easy to open you need some tools to open it

Compare quotes from locally reviewed plumbers

It's free and there's no obligation to hire.

Compare quotes from locally reviewed plumbers

How it Works

step1
Step 1
Post a job for free
step2
Step 2
Tradespeople Reply
Medal
Step 3
Review profiles & Choose