Chase Hattan Watches has dated this piece to the 1950s.
With its original charm and horological pedigree, this classic timepiece offers a refined presence on the wrist and historical significance under the caseback.
Key Features:
Model: Longines 6403-8
Year: 1956 (verified by serial number)
Case Size: 33mm stainless steel
Dial: Champagne with vintage patina
Hour Markers: Arabic numerals at 6 and 12, stepped batons at 3 and 9, single baton markers elsewhere
Crystal: Plexiglass (vintage correct)
Movement: Longines 23ZS manual wind, 17 jewels
Power Reserve: Approx. 40 hours
Strap: Generic brown leather with pin buckle – fits wrists up to 19cm
Water Resistance: Not water resistant due to age
Servicing & Condition:
Service History: Markings inside caseback show services in 1962, 1973, 1999, and 2002
Working Order: Keeps time reliably; available with our 12-month mechanical warranty
Condition: Vintage wear consistent with age – dial retains warm patina, case lightly worn but not polished
Our View:
A pure vintage piece with incredible heritage and timeless charm. The Longines 6403-8 represents the golden era of mechanical watchmaking—functional, elegant, and reliable. A must-have for collectors or first-time vintage buyers alike.
Chase Hattan Watches has dated this piece to the 1950s.
Specialists in vintage, military and luxury watches
You can view the stock and full dealer information on the Chase Hattan Watches Profile Page
Vintage Longines 6403-8 – 1956 | Manual Wind Watch 33mm | Cal. 23zs