Sonne S034PGZ-BK Elegant Design Water Resistant Quartz Movement Durable Stainless Steel BandProduct Highlights The culmination of the 30 series, featuring a Japanese made mechanical movement, has arrived in an octagonal shape (commonly known as the Octagon). The rotating disk second display and the movement's heart, the "balance," visible through the open heart, captivate the wrist. The radiating guilloche emphasizes the "balance" peeking through the sunburst guilloche open heart. It features a bubble back case that makes the main body of