The Heritage Numeral Small Seconds Ref. 641.500 features a bold, highly legible dial with printed Arabic numerals, inspired by a historic piece that helped spark the brand’s revival. Clean, balanced, and full of character, it’s powered by the automatic LC-350 movement with COSC-certified precision and a 56-hour power reserve.

Technical Specifications:

• Case: 316L stainless steel
• Diameter: 37.8mm
• Thickness: 10.5mm (8mm without crystal)
• Caseback: Screwed down
• Crystal: Double-domed sapphire with internal AR coating
• Lug-to-lug: 45.5mm
• Lug width: 20mm
• Water resistance: 50m (5 ATM)
• Caliber: LC-350
• Type: Mechanical, self-winding
• Certification: COSC certified
• Power reserve: 56 hours
• Frequency: 28,800 VPH
• Jewels: 31