Years ago, as a young man, I was quite an active cyclist and used to ride a bike built with Reynolds 531 tubing. Then I bought my first car . . . .
Now that I am living in a small village I have recently taken up cycling again and have a mountain bike. However, I just spotted a vintage Peugeot machine (with 531 tubing) for sale at a bargain price and just had to buy it.
Can anyone please help me find out which model it is? Details follow:

Serial number: 7.02.1473
Colour : silver
Simplex gears (see pic)
Reynolds decals (see pic)