For sale : Vintage 1960s Wittnauer Professional Chronograph, Valjoux 72, Serviced [Fratello : Finally!!! The Identity Of The Other NASA-Tested Watches](https://www.fratellowatches.com/the-other-nasa-tested-watches/) In the 1960s, NASA sought a watch capable of withstanding the extreme conditions of space travel and issued a call for watch brands to submit their chronographs. Several brands responded, including Longines who submitted this Wittnauer 235T model, together with Omega Speedmaster model (ST105.003 from 1964), and Rolex with reference 6238. Now, it’s your chance to own this piece of history. SPECIFICATION: Maker: Wittnauer Model: Professional Chronograph Reference: 235 T Year: Circa 1960s Material: Stainless Steel Dimensions: 36mm diameter Lume: Tritium Caliber: Manual Winding Valjoux 72 Bracelet/Strap: Nubuck leather strap Lug Width: 18mm Box/Papers: No Serviced: Yes Condition: This is probably one of the best examples you’ll ever find. The case is in good condition with some signs of wear. Original untouched tri-colored dial is in superb condition. The blued steel center chronograph hand and sub-dial hands are eye-catching. Triple signed, original signed Valjoux 72 movement, signed crown & signed screw-down case back. And also original pushers. Movement has been serviced and the watch is keeping time very well. Chronograph starts, stop and reset to zero as it should. ~~Price : $2,250 free shipping conUS only. Payment via Zelle, wire or PayPal G&S (+3.5 % fee)~~ SOLD Let me know if have any questions or need more pictures or custom timestamp, thank you. [Albums](https://imgur.com/a/WTwFLhM) [Timestamp](https://imgur.com/a/tCvl7hW)