Girard-Perregaux 9017 Venus 179 Movement Vintage

Key Points from the Discussion

• The Venus 179-based rattrapante chronographs, including those from Franck Muller, Daniel Roth, Panerai, GP, and Ulysse Nardin, are exceptionally rare and appealing to collectors, despite varying levels of movement finishing.
• Daniel Roth's finishing of the Venus 179 movement is considered superior, approaching the quality seen in Patek Philippe, while other brands like GP, Panerai, and Ulysse Nardin offered competent but less refined execution.
• A batch of 50 Venus 179 movements was discovered and subsequently acquired by Girard-Perregaux, Paul Picot, and Panerai, with GP's finishing often cited as the best among these brands under the Macaluso family ownership.
• The finishing of the Venus 179 in the GP ref. 9017 is comparable to that found in Lemania-based movements used by brands like Patek Philippe, emphasizing the rarity and historical significance of the caliber itself over its decorative finishing.
• The community inquired about the finishing level of the Venus 179 movement in the GP ref. 9017, seeking to understand if it was industrial or closer to high-horology standards like Patek's 5070 or Atelier de Chronométrie's AD17.
• The Girard-Perregaux ref. 9017 was produced in extremely limited quantities across various metals: 5 in white gold, 14 in pink gold, 5 in yellow gold, 5 in platinum, and 2 in titanium.