Breitling 18ct yellow gold mechanical chronograph 17 jewel manual wind 188 movement. Working when tested. Marked Swiss 18ct hallmarks to the case and bezel. Serial 8380. Circa 1961, case width 34 mm, total watch head weight 33 grams. Cited service receipt 28/03/2018. Provenance: Patricia Penn BBC photojournalist (worn during her time in the Vietnam war )