🔹 Overview
The RL Milgauss Ref. M116400GV-0001 is one of the brand’s most distinctive models, engineered to resist magnetic fields up to 1,000 gauss. Originally introduced in 1956 for professionals in scientific and technical fields, the Milgauss quickly became a symbol of innovation and individuality. Its hallmark green sapphire crystal (GV – Glace Verte) and lightning-bolt orange seconds hand make it instantly recognizable, blending technical mastery with playful design.

💎 Key Specifications
Reference: M116400GV-0001
Case: 40 mm Oyster case in Oystersteel, smooth polished bezel, screw-down crown
Crystal: Scratch-resistant green sapphire crystal (exclusive to Milgauss)
Dial: Black with orange accents; luminous markers; orange lightning-bolt seconds hand
Bracelet: Oyster bracelet in Oystersteel, solid links with folding Oysterclasp and Easylink 5 mm extension
Movement: RL Calibre 3131, self-winding mechanical
Functions: Hours, minutes, seconds; stop-seconds for precise setting
Power Reserve: ~48 hours
Water Resistance: 100 m / 330 ft
Magnetic Resistance: Up to 1,000 gauss
Certification: Superlative Chronometer (COSC + RL after casing)

⏱️ Movement
Type: Perpetual, mechanical, self-winding
Caliber: RL Calibre 3131
Features: Anti-magnetic shield protecting the movement; paramagnetic blue Parachrom hairspring; Paraflex shock absorbers; bidirectional self-winding rotor
Accuracy: −2/+2 seconds per day after casing (Superlative Chronometer)
Power Reserve: Approximately 48 hours

✅ Conclusion
The RL Milgauss Ref. M116400GV-0001 is a true icon of scientific heritage and bold watchmaking. With its unique green sapphire crystal, vibrant orange accents, and legendary magnetic resistance, it stands apart as one of RL’s most unconventional yet admired creations. Discontinued in 2023, the Milgauss remains a prized collectible for enthusiasts, combining engineering excellence with a spirit of individuality that will continue to spark conversation and admiration.