I actually posted the detail on another thread, but Leica have so far been incredibly forthcoming and helpful.
My first conversation with them led to me sending the binoculars to the London office for them to ship the binoculars to Portugal for service. That initial call was followed up with another call from a lady in their Customer Care department who informed me that the binoculars were manufactured in 2003 and were covered by a valid 30 year warranty, so 10 years remaining. I don't possess the original warranty card, but enclosed a copy of the purchase receipt instead. In the end, I don't think this was necessary. I then received an email from the same customer care lady yesterday, to say that the binoculars had been shipped to the factory in Portugal, where they would be opened up by a technician and inspected. She would then come back to me with the findings. Any necessary repair due to impact damage or negligence will be chargeable, but all the work done relating to general wear and tear (servicing, cleaning, replacement parts, replacement armour etc.) will be covered under the warranty. She indicated a time frame of approximately 3 weeks.
I have to say I'm super impressed by Leica’s response and communication so far. I'll keep you posted! 🙂
James