Zenith steel vintage wristwatch, circa 1955 - Black Bough | Ludlow
File:Zenith Watches - Vintage Zenith Swiss-Made Men's Quartz Watch, Analog and LED Digital Display, Excellent Working Condition, Circa 1970s (8598831202).jpg - Wikimedia Commons
Zenith Watches. Original Advert 1973 (ref AD6863) – The Nostalgia Shop