For sale ($425 OBRO) I have a genuine Omega stainless steel micro adjustable size clasp, reference STZ001154 / 117STZ001154. This is the clasp with the 6 position / click adjustment without the divers extension, more desirable by many as it has a smaller length (versus the 1159 model, which has both 6 position and divers extension) The clasp is in good conditions as shown and can be used in many Omega bracelets to adjust bracelet size on the fly, similar to the Glydelock feature find on the Rolex Submariner and Sea Dweller models. On the Omega Seamaster Professional Ceramic (SMPc) 20 MM bracelet, reference 1515/816 can be retrofitted / added without the need of additional parts; on many Omega Speedmaster 20 MM bracelets, as well as on the 1610/930 Omega Seamaster (Speedmaster styled) bracelet it can be retrofitted but different clasp end links will be required (such as 118STZ000015 or 118ST1589). A pair (2) of 118ST1589 ends are included on the sale as shown. These threads provides some examples on Omega models where people has successfully retrofitted the adjustable clasps: https://www.watchuseek.com/f20/what...adjustable-clasp-117stz001154-3609002-28.html https://www.google.com/amp/s/forums.watchuseek.com/f20/omega-adjustable-clasp-s-4387610.html?amp=1 https://www.google.com/amp/s/forums.watchuseek.com/f20/omega-adjustable-clasp-s-4387610.html?amp=1 It's TIGHT! It's LOOSE! It's LOOSE... Micro adjusting clasp The current MSRP cost of the 1154 clasp without the end links is $370 plus tax; each end is $59 plus tax (if you find a friendly Omega Boutique that will order one for you; Omega had recently increased their pricing on the adjustable clasps and are less friendly into allowing people to order parts of a bracelet for a watch retrofit) so here is your chance to buy the clasp with the end links for less. Price includes shipping anywhere in the USA through USPS mail, payment by Paypal, Venmo or Apple Cash. I have many transactions here and over 150 on Watchuseek (WUS) plus a few on The Rolex Forums (TRF) and "The Good Guys"(all positive), so feel free to check them out. Also 100% positive feedback in over 1,350 transactions on Ebay under the same user name. Additional references available upon request. For any questions (or a HD video) please PM me or text me at 787-248-6267. Thanks for looking!