Every common micro brand will do an SW200 or equivalent for somewhere between £800 and £2k depending on the case and finishing. A well tuned version should keep time pretty well, a straight from the factory version could be +-2 mins a week similar to a seiko 5. Sinn are at the top end of the price scale but they're more established and more reliable than a random micro brand. I put them in the same bucket as Doxa.
Every common micro brand will do an SW200 or equivalent for somewhere between £800 and £2k depending on the case and finishing. A well tuned version should keep time pretty well, a straight from the factory version could be +-2 mins a week similar to a seiko 5. Sinn are at the top end of the price scale but they're more established and more reliable than a random micro brand. I put them in the same bucket as Doxa.