TH Picard et Fils, a gold chronometer wristwatch

TH Picard et Fils, a gold chronometer wristwatch, 'La Chaux-de-Fonds', mid 20th century, the black enamelled dial with subsidiary seconds and half hour dials, with white enamelled hands, to a gold case with winder and two buttons for stopwatch function, to a later black leather strap, dial 3.2cm diameter, manual winding movement, dial signed TH Picard et Fils, La Chaux-de-Fonds', the top inscibed 'Telemetre' case and interior of case back with Swiss assay marks for 18ct gold, numbered 224403

Accompanied by a facsimile of a receipt dated 21st February 2017 from Bonhams