ALPINA GRUEN Pentagon Precision 14k yellow gold open face 5-angled gents pocket watch, USA/Switzerland around 1925, smooth case, snap on case back & bezel, floral engraved bow, very beautiful duoton-dial with raised gilded Breguet numerals, constant second at 6, gildedcathedral-hands, silvered precision movement marked 'Verithin Precision', 17 jewels, compensation-balance with Breguet-hairspring, precision adjustment, diameter approx. 46 mm, weight approx. 58g, condition 2