KBH 7 Posted February 4, 2009 Picked this up in some random searching on the web. Thought it might be of some interest. PTS Resources are a Hong Kong based supplier of watch movements. Although PTS do offer movements of their own design; most notably their famous tourbillons; the actual manufacturing is done for them by the Hangzhou and Liaocheng watch factories. In addition to such exclusive movements, PTS also offer off-the-shelf models from these two factories. They also deal in off-the-shelf calibres from Nanning Watch Factory, Shanghai Watch Industry Corp, Guangzhou-Dixmont Watch Co. and Tsinlien Horologia, Hong Kong. (Tsinlien source all their movements from Sea-Gull, Tianjin) PTS also offer Swiss mechanical movements and quartz movements from many international manufacturers. Current PTS Resources calibres as at 2006/2007 The 9000-series calibres These are the mysterious ‘Chinese Unitas’ (notoriously used in fake Panerais). Both skeleton and solid versions, seconds-at-9 and seconds-at-6 are offered with upgrades in the form of dial-side modules for dual-time and day/night indicator. They also apear on Hangzhou's on-line catalogue so it is safe to assume that they are the manufacturer. The FD- calibres The famous PTS tourbillon! These also appear on Hanzhou's website so they are probably Hangzhou-made. The one mystery with these is that they seem to use the keyless-works of the Standard movement, which Hangzhou seems to have stopped making. The 2000-series calibres These are all from Hangzhou, although some have complications unique to PTS. Calibre 2451 The PTS ‘Reverso’. This appears to be one of Hangzhou’s Seiko-like calibres with the auto-winding mechanism removed and replaced by a duplicate hand-train to enable a watch with a dial on each side of the case. The base-plate has been trimmed slightly at 3 and 9 o’clock to better fit a ‘tank’-style case. Calibres 2521 and 2540 This dual-time complication on a Hangzhou calibre is probably exclusive to PTS. Calibres 2221, 2240/2241 and 2312 Hangzhou, but with advanced complications that are most likely exclusive to PTS. The DG- calibres The DG- nomenclature indicates that these movements have been sourced from Dixmont-Guangzhou, however the designs match those of other manufacturers such as Sea-gull and Nanning. Given Guangzhou’s use of the Shanghai B calibre in a reduced-jewel version (e.g. Alpha GMT), it would appear that they are able to get ebauches directly from several other manufacturers. Calibres DG-8000 to DG-8021 The escapements are unmistakably Sea-Gull calibre ST80 flying carrousel-tourbillons, although the squared edges of the dial-plate is unusual. It looks like Guangzhou may have done some significant modifications to the base movement, or else are using sea-Gull tourbillon escapements in a calibre design of their own. These are all automatics. Calibre DG-8101 Given the similarity to the other DG- tourbillons, this must be the Sea-Gull ST82 common-axis tourbillon. Calibre DG-1800 This is a flat three-quarter-plate hand-winding variant of the Nanning NN28. The DG-2800 and DG-3800 series These belong to the Nanning’s Miyota-like NN28/NN38 series. The DG-4813 seems to be a very flat version from the same series. Calibre TL-8601 It looks identical to the DG-3803A. Calibres 2L27 and 2L30 This is the Shanghai open-heart with the distinctive large-diameter balance-wheel. The M- calibres This movement is styled to mimic the Girard-Perregaux ‘3 Bridges’ and shows the same design fair as the F- and ML- calibres so it is likely it shares a common origin. It is hard to say more without looking at the other side of the movement. The F- calibres Functionally this appears to be a successor to the ML-7101, but certain details such as the position of the escape wheel and shape of the keyless-works indicates that this is something completely new. Made by Liaocheng. Calibre ML-7101-W1 The original Chinese open-heart, made infamous by the Franck Muller-style watches made by Million Smart for Montres Allison a few years ago. Made by Liaocheng, possibly exclusive to PTS. Calibre 7750 Swiss ETA-Valjoux 7750, or possibly the Liaoning (not Liaocheng) calibre 4140 or Shanghai 3L43. Calibre 2650-S The Chinese Standard skeleton, probably from Laiocheng. Movements identical to this are manufactured in many Chinese factories. Calibre PL-2002/PL2003 This is like a woman-size version of the ML-7101. Exclusive to PTS and made by Liaocheng. Calibres 2671, 2824, 2824-S, 2834 and 2836 ETA movements Calibre SW200 The Sellita copy of the ETA 2824-2. Calibre 3611/3612 This very unusual ‘linear’ movement has the same small balance with regulator on the dial side as the ML-, PL- and F- calibres so it appears to be a Liaocheng product. Links http://www.ptsresources.com http://hangzhouwatch.com http://www.dixmont.com.cn/en/company/main.aspx http://www.tjseagull.com/jx.asp http://www.nnsme.com/qyzc/dqyb/watch07/28.htm http://www.chinawatch-clock.com/cpgg/shang...tch/index23.htm Share this post Link to post Share on other sites
trailboss99 994 Posted February 4, 2009 Nice find. FYI: PTS now have a partnership arrangment with the Hangzhou Watch Company. The two firms are, for all intents and purposes one. Col. Share this post Link to post Share on other sites
JohnG 41 Posted February 4, 2009 Great information - thanks! Share this post Link to post Share on other sites
greg_r 81 Posted February 4, 2009 Wow! Awesome post, KBH. Thanks for the info! Share this post Link to post Share on other sites
ricardfolch 0 Posted June 13, 2013 I am interested in Chinese clones 2824 (Dixmont-Guangzhou, Sea-gull), if I can lend a hand be grateful. Thanks in advance. Share this post Link to post Share on other sites
Thang 558 Posted June 13, 2013 Thanks for the information. The sapphire tourbillon looks very cool. Share this post Link to post Share on other sites
