Horological Meandering - Ultra-Chron – when no ordinary chronometer will do
Longines - Ultra-chron - Ref. 8071-2 SS AT cal. 431 - - Catawiki
watches/not/gp: my first Longines - The GP Chronicles
LONGINES Admiral Date cal.431 Silver Dial Automatic Men's Watch_647510 | eBay
bidfun-db Archive: Watch Movements: Longines 431
Longines 431 - Segnatempo
Longines Ultra Chron 431 Movement | WatchUSeek Watch Forums
Service: Longines Ultra-Chron calibre 431 | Watch Guy
LONGINES ULTRA-CHRON JUMBO 37mm | 1969 | CAL 431 | STEEL • Vintage Watches For Sale - Certified Authentic - Stetz & Co.
Longines 431 - Oldswisswatches.com
Longines 431 - Oldswisswatches.com
Vintage 18k GP LONGINES ULTRA-CHRON Automatic Watch Cal.431 EXLNT* SERVICED - Fashion Ace, Inc
Service: Longines Ultra-Chron calibre 431 | Watch Guy
Vintage 18k GP LONGINES ULTRA-CHRON Automatic DATE Watch Cal.431 EXLNT* SERVICED - Fashion Ace, Inc
Cervice Longines Ultra-Chron calibre: 431 – Mitka's vintage watch service.
Service: Longines Ultra-Chron calibre 431 | Watch Guy
