Add a brass timepiece to your collection with the Triwa X Skultuna III Brass Watches. Featuring a brass case and navy blue dial set, the watch offers a transparent mineral glass back plate. This allows you to see time go by inside the automatic movement from Miyota. The oscillating movement of the weighted rotor powers the watch or you can also manually wind it by the crown. The movement runs at 28,800 vibrations per hour and has a power reserve of 42 hours. Additionally, the limited edition collection offers 400 pieces. Likewise, each watch comes with a number from 1 to 400 to mark the order of production. Made with raw brass from Skultuna Brass Foundry, founded in 1607, the Triwa X Skultuna III timepiece develops a distinctive patina over time. You can also polish the watch with a mild metal polish and cloth if you prefer to restore its shine.