A FINE & RARE GENTLEMAN'S 18K SOLID GOLD ZENITH CHRONOMETRE WRISTWATCH CIRCA 1951, FIRST SERIES CALIBRE 135, COMES WITH ADDITIONAL SOLID GOLD CUSTOM MADE EXHIBITION BACK D: Silver dial with raised gilt Arabic numerals, "dagger" batons & hands, subsidiary seconds. M: Manual wind chronometer movement, signed Zenith & numbered, calibre 135. C: Circular case, signed Zenith & numbered, hallmarked, original crown, case diameter measures approx. 35mm. S: Brown leather strap with original Zenith gold plated pin buckle.