Dukes, St James’s Place, SW1 (020 7491 4840; dukeshotel.com)
This is the very bar where, legend has it, Ian Fleming came up with the line ‘Shaken, not stirred’. Martini aficionados will, of course, point out that you should actually stir, not shake, a Martini. Try a Vesper (from £15.95) or a Fleming 89 (devised with Floris, whose No 89 Cologne is worn by Bond himself).