Wittnauer Professional Chronograph from 1961 Valjoux 72 movement
4 Vintage Wittnauer Watches – Robb Report
Vintage Wittnauer Chronograph Wrist Watch - Etsy UK
Wittnauer Professional Chronograph 6002/5 — WATCH VAULT
Bring a Loupe: A Rare Wittnauer Professional Chronograph 242T, A Funky Jaeger-LeCoultre 'Disco Volante,' A Rolex Explorer II Reference 1655, And More - Hodinkee