However, the zipper started giving away and I didn't fix it when I saw it(I only started sewing in May), so this happened:
I went to these mending guys in London Victoria(big chain, name escapes me) and they quoted me £50 to replace it - which I thought was fairly expensive, at more than 50% of the bag price (digressing, I wonder if one could buy something similar for this money in London). Then I went to Romania for Easter and didn't make the time to repair it. Silly me.
This weekend a good friend visited from Vienna and she insisted that she should try to mend it there as it would be cheaper. I wasn't convinced but it did urge me to try and make this a fall project.
So, I took good look at construction yesterday evening. The zipper has two seams: one for the leather and one for the lining:
I think I can do the new lining seam by machine and I can use the existing holes to hand sew the zipper to the leather exterior. I'm a bit worried about the endings but they don't seem particularly complicated in construction.
Hopefully it should be OK. I'm planning to go to MacCullough and Wallis to get some proper thread and a sturdy zipper. I was thinking of this for the thread:
The zipper will be something like this: http://www.macculloch-wallis.co.uk/Product.aspx/Zips!38/36