100% Handmade in Turkey Leather and Brass Perpetual Calendar At Galen Leather, we love vintage dials & calendars which is why we created our own unique, leather cased analog perpetual calendar. For the history buffs, antique lovers and those who simply love a vintage or medieval aesthetic, this perpetual calendar makes a beautiful analog collector's items. Perfect as a standalone dial or as a decorative binding for your leather notebook cover. It's also small enough to act as a leather pocket calendar. It features etched letterpress onto beautiful raw brass and a hand-stitched leather frame. Simply line up the month, date & weekday as the time passes. Good for any year and made to last. Size: 80 mm dia or 3.2" What is a Perpetual Calendar? A perpetual calendar is a means for tracking the day and date, perpetually. So every year you can reuse the perpetual calendar by simply resetting the day and date on display.