Sinns 456 series addresses the needs of ladies watches are smaller and more elegant while having all of the necessary features this timepiece makes use of eta 2671 automatic calibre it performs 28 800 vibrations per hour and has 25 bearing jewels additional functionalities include a date window located at the 6 oclock mark electroplated and uv resistant dial appliqus attached by hand transparent case back pressure resistance and scratch resistant sapphire crystal glass with anti ref