View 2. Thumbnail of Lot 2023. Reference 844 | A yellow gold minute repeating openface watch with straight line perpetual calendar and moon phases, Retailed by Chronometre Beyer Zurich, Made in 1977 | 百達翡麗 | 型號844 | 黃金三問直線萬年曆懷錶，備月相顯示，由 Chronometre Beyer Zurich 發行，1977年製.