Longines Flyback Chronograph Ref. 7413/9 – Legendary Caliber 530 (30CH) 1970s
When it comes to vintage chronograph movements, few names command as much respect as Longines and the legendary Caliber 30CH. Revered by collectors for its precision, construction, and beautifully smooth operation, the 30CH stands among the great chronograph calibers ever produced.
Its predecessor, the famous Longines 13ZN, is often considered one of the finest chronograph movements ever designed. Introduced in 1947, the 30CH carried over the same celebrated architecture and retained the highly desirable flyback function, allowing the chronograph to be instantly reset and restarted with a single push — a feature originally developed for professional timing applications.
This particular example, Ref. 7413, elevates the technical brilliance of the movement with an huge 38 mm stainless steel case and a beautifully preserved silver sunburst dial with rare PULSATION layout. The balanced proportions, clean dial layout, and warm gold tones create a chronograph that feels both sophisticated and purposeful.
A true collector’s piece — combining technical excellence, timeless design, and Longines’ golden-era chronograph heritage.
- wrist size in our picture is 18cm circumference -
DIAL:
- original never touched silver sunburst dial in flawless condition
- rare PULSATION dial
- original hands and crown
STRAP & BUCKLE:
- brown Longines leather strap fitting up to 21 cm wrist size / 3 mm thick
- stainless steel Longines buckle
CASE:
- excellent overall condition, showing no traces of use
- 3- body stainless steel case with snap-on case back
- 38 mm (without crown) / 45 mm (lug-to-lug) / 18 mm (between lugs) / 11 mm thick
- Year: 1972
- Reference: 7413/9
- total weight: 52 g
MOVEMENT:
- Longines Caliber 530 (30CH) - manual
- 17jewels, 18000 A/h, 44 hours power reserve
- professionally serviced 05/2026
- -7 sec/d / 320°
BOX & PAPERS:
- GOLDAMMER certificate of authenticity & service documentation card
- GOLDAMMER box
GOLDAMMER REFERENCE: #1570