Antique Swiss "Superior Railway Timekeeper" Pocket Watch – 57mm – Key-Wind – 119g – Working ​Description Draft: ​A large vintage Swiss key-wind pocket watch featuring a clear dial signed "SUPERIOR RAILWAY TIMEKEEPER - SPECIALLY EXAMINED". ​Dial & Hands: White enamel dial with prominent Roman numerals, subsidiary seconds dial at 6 o'clock, outer minute track, and ornate gold-tone spade hands. Signed "Swiss Made" at the bottom. ​Movement: Antique Swiss mechanical movement with gilt finish, blued steel screws, and an engraved balance regulator ("FAST / SLOW"). Includes a winding/setting key. ​Case: engine-turned pattern on the back with a central garter/shield cartouche. Case back inside bears a maker's stamp featuring a heart shape with the initials I V Y inside a belted crest. ​Dimensions: Diameter: 57 mm (excluding crown/pendant). Total weight: 119 g. ​Condition: Working condition. The dial shows minor age-related patina around the edges consistent with its era. Case shows light signs of historical wear.