Manufacturing base dependent variable variance?

The 751 I wear for years in the same size and had the purchase in the fashion business never problems.
After I had here for 20 euros less discovered the jeans and anyway still be used a coupon, I decided to buy it.

As ordered, I received a stonewash and Onewash variant in the (supposedly) the same size.
When trying on clothes then the surprise:
Stonewash fits like a glove, Onewash is a good 2-3cm in covenant (or to 4-6cm in circumference) is smaller than my other 751er.
A look at the label reveals the only apparent reason:
All my store-bought 751er and increases the availability of Amazon stonewash variant are "Made in Pakistan".
Despite the same dimensions smaller dropout Onewash version of Amazon's "Made in Bangladesh".

Unfortunately, I have the whole thing noticed too late, so that an exchange is no longer out of the question.
Conclusion: Upon receipt of better bring the production site check!