Reference:1527: Difference between revisions

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<small>[[Reference:prince|Prince]] -> 1527</small>
<small>[[Reference:prince|Prince]] -> 1527</small>
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[[File:Ref 1527 hero.webp|thumb|center|640px|alt=18K white + yellow gold stepped Railway case (Antiquorum Geneva 2005 lot 100), silvered duo-dial "ROLEX PRINCE / CHRONOMETER"|18K white + yellow gold stepped Railway case (Antiquorum Geneva 2005 lot 100), silvered duo-dial "ROLEX PRINCE / CHRONOMETER"]]
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The 1527 is the Railway Prince. The case steps inward from the lugs in machined bands of solid gold, alternating white with pink (the canonical pairing) or white with yellow on rarer examples, producing a profile that read in the late 1920s and 1930s as obviously locomotive-inspired Art Deco. Each step is a discrete piece of solid 18K gold rather than an applied band over a base case, which makes the construction structurally distinct from the smooth bicolor 971A "Tiger Stripe" and visually distinct from every other Prince reference. The duo-dial layout is the standard Prince architecture — hours and minutes upper, sub-seconds at six — and the movement is the Aegler 7½′′′ T.S. 300 in Extra Prima or Ultra Prima grade. Production runs from a documented 1931 Mondani example into the 1940s, with a steel + gold-filled Bonhams 2006 lot anchoring the late-production end. The reference is genuinely rare in the modern auction record — fewer than fifteen distinct lots in the public auction record across the past three decades, comparable to the 971 in stepped-bicolor form rather than to the more common 1490. The collector watchmaker watch-guy.com calls it "the only rectangular Prince worth having."
The 1527 is the Railway Prince. The case steps inward from the lugs in machined bands of solid gold, alternating white with pink (the canonical pairing) or white with yellow on rarer examples, producing a profile that read in the late 1920s and 1930s as obviously locomotive-inspired Art Deco. Each step is a discrete piece of solid 18K gold rather than an applied band over a base case, which makes the construction structurally distinct from the smooth bicolor 971A "Tiger Stripe" and visually distinct from every other Prince reference. The duo-dial layout is the standard Prince architecture — hours and minutes upper, sub-seconds at six — and the movement is the Aegler 7½′′′ T.S. 300 in Extra Prima or Ultra Prima grade. Production runs from a documented 1931 Mondani example into the 1940s, with a steel + gold-filled Bonhams 2006 lot anchoring the late-production end. The reference is genuinely rare in the modern auction record — fewer than fifteen distinct lots in the public auction record across the past three decades, comparable to the 971 in stepped-bicolor form rather than to the more common 1490. The collector watchmaker watch-guy.com calls it "the only rectangular Prince worth having."


[[File:Ref 1527 hero.webp|thumb|right|250px|alt=Rolex Prince Railway 1527 18K white and yellow gold stepped case|18K white + yellow gold stepped Railway case (Antiquorum Geneva 2005 lot 100), silvered duo-dial "ROLEX PRINCE / CHRONOMETER"]]


==Core facts==
==Core facts==