Letting this Hamilton W10 6BB go. The case shows the stamp 6BB/523-8290 with the issue number (684) and 75 (1975). From what I have read this is a lower batch, and 800 pieces were produced for the R.A.F This Hamilton W10 Military watch is set in its original 34mm stainless steel cushion case with the classic military black dial, printed full Arabic numerals, aged luminous hour markers and luminous hands, acrylic plexi-glass, case back marked with military references and 'broad arrow, symbol, powered by a manual wind mechanism on a nylon NATO strap. All parts appear original. The watch is currently running around +-30 seconds per day and the hacking function works perfectly. I would always recommend a service for daily wear and would not recommend water. £625 plus shipping. UK £7.25 EU £25 ROW £35. (U.K RMSD, EU ROW Fedex insured.) Returns only accepted if incorrectly described. Buyer to pay all costs. https://omegaforums.net/threads/smitty190373-is-great-seller.69000/ https://omegaforums.net/threads/smitty190373-highly-recommended-seller.68467/ https://omegaforums.net/threads/great-deal-from-smitty190373.66090/ https://omegaforums.net/threads/smitty190373-fantastic-seller.53493/ https://omegaforums.net/threads/smitty190373-good-seller.51348/ Pictures: Please ask any questions before buying. Pictures form part of the description. Thank you.