OMAS, by experience from the forum, refuses repair of older 360 Grandes citing missing spare parts, which makes the service situation appear critical. As an alternative, experienced pen restorers or specialised workshops familiar with Italian piston pens come into consideration who, if needed, source spare parts from donor devices or in-house manufacture. Users report that OMAS pens are valued for their flexible nibs and workmanship, but the service shows long processing times and repair refusals on models taken out of the programme. An enquiry with renowned specialist restorers is therefore the most practical way.