"Magnificent Mathey! - ca. 1971 Mathey-#Tissot “Mergulhador” #SkinDiver - Ref. 1635 - powered by a “Ultra High Frequency” (UHF) ETA 2784 automatic movement. (f ~ 28,800 A/h vs. 21,600 A/h) - Mergulhador meaning “#scuba diver” in Portuguese." https://www.instagram.com/p/CsJvszMLjIw/ #watches
