HEUER - a gentleman's Autavia 'Great White' chronograph wrist watch. Reference 11630, serial 259866. Signed automatic calibre 12. White dial with baton hour markers, subsidiary dials to three and nine, date aperture to six. Tachymeter bezel, stainless steel case fitted to an unsigned black leather strap with gold plated pin buckle. 41mm. The white dial Autavia 11630 ‘Great White' is something of a rarity. The sub-dials, originally black, have faded to an even ‘tropical' colour perfectly complementing the creamy white of the dial.