High-end 1950s Eberhard and Co 40 17 Jewel Swiss Watch. Professionally Serviced - Etsy
Eberhard -1940s German Pilot Chronograph Watch | eBay
A Crash Course In Flieger (Pilot) And B-Uhren (Navigator) Watches Covering Both Historic And Modern Examples (A Pilot's Watch Photofest!) - Quill & Pad