Patek Philippe Ref.5960, an Annual Calendar Chronograph released in 2006, used to come in a platinum case but this year Patek surprised the world by housing its complication in a new stainless steel case.

Patek Philippe Ref.5960, an Annual Calendar Chronograph released in 2006, used to come in a platinum case but this year Patek surprised the world by housing its complication in a new stainless steel case.

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