If you mean that without having deposit in your Thai bank accout, yes, you can get a single entry Non-O visa for retirement purpose from Royal Thai Embassy, London with deposit in a bank account in another country.
But if you mean in ANY bank, no you cannot unless you can provide financial evidence showing monthly income of no less than 65,000 THB (£1,500).
Please check the requirements for Non-O retirement from RTE London here.
******************************************************