Part #2558 Double Toothing Hour Wheel for Cal.11 & 12 Breitling Chrono-Matics These Buren Calibre 11/12 Chrono-Matic Movements were extensively used by Breitling, Heuer, Hamilton, and many other top Swiss Chronograph makers during the 1970s. This part has a brass & steel finish. I presume it is not suitable for Cal.14. Condition: Unused old stock.This is an original vintage Swiss made spare part for pre 1979 Breitling Chronograph Wristwatches. Suitable for the vi...ntage Breitling Chronograph Collector, Repairer, Restorer and Builder. These parts are guaranteed to be genuine Swiss originals. They were purchased by me, in the 1980s, from suppliers involved with the liquidation of stock from the original pre 1979 Willy Breitling Company. It is unlikely that these parts will fit any modern-day Breitling Wristwatch, real or otherwise, manufactured after 1980.Postal Charge. UK "Signed For" GBP2.75. Overseas - Please view the Postal Rates for your Country on the second page of this listing. Details on combined lots are also provided. Payment.Your choice. PayPal, GBP£ Personal Cheque, GBP£ Cashiers Cheque, GBP£ Bank Credit Transfer, GBP£ Bank Money Order, GBP£ Postal Order etc. Be sure to check out our other interesting items by clicking on "See other items".