http://www.christies.com/lotfinder/salebrowse.aspx?intSaleid=25411&viewType=grid
精心选取100只，极具代表性。
据说需要提前订位子，不然只能站着看了。

lot13
Patek Philippe. An extremely fine, rare and early 18K gold openface keyless pocket chronometer with spring detent escapement and Bulletin d'Observatoire
Signed Patek Philippe & Cie., Genève, Switzerland, movement no. 80'869, case no. 243'900, manufactured in 1891
Cal. 20''' gilt-finished Extra Quality keyless movement numbered twice, Earnshaw-type spring detent escapement, 21 jewels, bimetallic compensation balance with gold poising screws, blued steel helical hairspring, free sprung regulator, wolf's tooth winding, gold cuvette, white enamel dial, Breguet numerals, outer railway five minute divisions, constant seconds, circular case, inlaid black enamel initials LB to the back, case, cuvette, dial and movement signed
54 mm. diam.

百達翡麗，極精細、罕有及早期，18K金精密時計，配游絲止動擒縱裝置，附天文臺認證，1891年製