Cartier, 18K yellow gold with baguette diamonds, Cal. 12001, 38 jewels, tourbillon perpetual calendar self-winding wristwatch, circa the 1990s.
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Cartier, 18K yellow gold with baguette diamonds, Cal. 12001, 38 jewels, tourbillon perpetual calendar self-winding wristwatch, circa the 1990s.
Patek Philippe, Ref. 3940, perpetual calendar, second series, 18K yellow gold, Cal. 240 Q, 27 jewels, circa 1988.
Roger Dubuis, Sympathie bi-retrograde perpetual calendar chronograph, 18K white gold, Cal. RD 5637, 25 jewels, limited edition of 28 pieces, circa 1999.