Ollech & Wajs Aviation Navitimer

This is a rare Breitling Navitimer cousin, produced by Ollech & Wajs in the 1970s. O&W purchased most of the Breitling equipment, stock, casts, and templates when Breitling was sold off during the "quartz crisis". The name "Aviation" was chosen since O&W couldn't use the Breitling branding. This Aviation Navitimer was purchased from a watch shop in Zurich in October 2022, and I have the receipt. I also have the receipt for the complete overhaul service, done in November 2022. I do not have the original box and papers. The fully functional chronograph is in pristine condition for its age and is powered by the robust Valjoux 7733 hand-wind movement (can be heard in the video!). The face is 10k gold-plated with a smooth slide rule bezel. The case size is 42mm. I will include the pictured brown, leather, strap as well as the original black leather strap. I will also include the green nato strap as seen in the photo. This is priced high due to its condition and rarity.