General presentation of the Longines Ultra-Chron Classic 40mm
The Longines Ultra-Chron Classic 40mm embodies the technical heritage of the Longines brand, a pioneer in high-frequency watches. This model combines timekeeping performance with understated elegance, in a contemporary 40 mm format designed for everyday wear.
Design and features
Its stainless-steel case houses a silver dial with a “sunray” finish, enhanced with applied indexes and polished rhodium-plated hands. The double-sided anti-reflective sapphire crystal ensures excellent legibility.
Two finishes are available:
- Black alligator leather strap with pin buckle.
- Stainless-steel bracelet with dual safety deployant clasp and a micro-adjustment system.
Movement and performance
Powered by the Longines automatic caliber L836.6, the watch beats at 36,000 vibrations per hour, ensuring remarkable accuracy. Its single-crystal silicon balance spring reinforces stability and resistance to magnetic fields. The power reserve reaches 52 hours.
Technical details
- References: L2.937.4.72.2 (leather) / L2.937.4.72.6 (steel)
- Movement type: Automatic mechanical (Caliber L836.6)
- Case: Stainless steel
- Diameter: 40.00 mm
- Thickness: 10.95 mm
- Lug width: 21 mm
- Water resistance: 5 bar (50 m)
- Crystal: Double-sided anti-reflective sapphire
- Dial: “Sunray” silver
- Indexes: Applied
- Hands: Polished rhodium-plated
- Functions: Hours, minutes, seconds, date
- Power reserve: 52 hours
- Weight: 68 g (leather) / 133 g (steel)
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