Service: Breitling Navitimer 806 calibre 178 mitka88 8 years ago A good client has sent in his lovely 1959 Navitimer. It’s not keeping good time and needs a service. Lovely Venus 178. One would like a little better timekeeping than that! I remove the hands and dial. I start taking the movement apart. Down to the base movement. I now take apart the lower chronograph section. Look at all that dirt! Old mainspring. The movement has been cleaned. Now I see that the balance moves freely after fitting the cap jewels. I fit a new mainspring. Base movement coming together. Case movement back together and ticking. That’s more like it! I start fitting the chronograph components. Movement almost back together. Movement ready for dial and hands. Movement back together looking great. Great looking Breitling! Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook