Vacheron & Constantin Chronomètre Royal Pocket Watch

This is a high-precision Vacheron & Constantin 'Chronomètre Royal' open-face pocket watch, likely dating from the early 20th century (circa 1910-1920). The timepiece features a substantial 18k yellow gold case with a polished finish. The white enamel dial is accented by bold black Roman numeral hour markers and a railroad-style outer minute track. A central signature reads 'Chronomètre Royal, Vacheron & Constantin, Genève.' The watch displays an unusual sub-dial configuration with the small seconds located at the 9 o'clock position, rather than the standard 6 o'clock location, which suggests a movement originally designed for a decorative pocket watch or a specific modification. The hands are crafted from blued steel, including a distinct 'spaded' hour hand and a thin, elongated minute hand. Condition-wise, the enamel dial shows significant hairline fracturing, particularly radiating from the center toward the 2, 4, and 8 o'clock positions, which is a common aging issue in vintage enamel. The gold case appears robust but exhibits micro-scratching consistent with age and use. The winding crown and large circular pendant loop appear to be original and in working order. This piece represents the pinnacle of early 20th-century Swiss horology, known for movements that met rigorous chronometer standards.