Apple Watch V6 and my gmail calendar plus my wife's gmail calendar

I want my native apple watch calendar to show both my google calendar and my wife's gmail calendar.

I have this combined display working with the app "Readdle/calendars" on my iphone and the combined display working with the native apple calendar app. I also have the combined display working working on the apple 6 watch - using the Readdle complication.

However on my apple 6 watch native calendar, I do not see my wife's calendar entries.

This is driving me nuts. Can we start talking about how this is possible.

Thanks

Roger