The first watch I bought was in 1971. It was an Omega Chronostop. it cost me about a month's wages. The watch fell into the Bay of Naples about ten years later. This picture is of it's replacement...

I answered No, but because the alternative was buy it now. I like the idea, but there are two questions..

1. What is the quality of the tools, Bergeon standard?

2. How much were you thinking of charging?

She is 22, she should be buying her own luxuries.

Quality is the relationship between subject and object. In a middle class setting with shelter, food and drink provided, a finely cut diamond is worth more than a bottle of water. In a desert, on one's own with rescue days away, the bottle of water is worth far more than the said diamond.

Your mum's taste in watches has improved, in as much as the watches she is interested in add some value to her. "Chapeau" to your mum.

Casio MDV-106-1A Mens Duro 200M

or

CASIO MRW-200H-1BVEF

£50 and £25 respectively...

Certina DS Action Diver 43mm. Ceramic 120 click bezel. It wears smaller than 43mm suggests

First watch was an Omega Chronostop cal 920 in 1971. I was not quite eighteen. I had the watch for just over a decade, before it fell into the sea when on holiday. I have spent many years exploring replacements, including a second Chronostop in 2018.