This perpetual calendar is presented in a 42mm case made of polished/satin-finished stainless steel. Like all the watches in the Senator Excellence line, this new variant was designed with the highest demands on suitablilty for everyday use, durability and timeless aesthetics. The sapphire crystal case back provides an unobstructed view of the finely finished automatic movement. The timepiece is optionally equipped with a blue Louisiana alligator leather strap, a robust blue synthetic strap or a stainless steel bracelet. The perpetual calendar is considered one of the most sophisticated complications in the art of watchmaking. Its ingenious mechanism bears witness to the expertise, dexterity and passion of its developers: the calendar function represents the correct relationship between the date, day of the week and leap year until the secular year 2100. With the Senator Excellence Perpetual Calendar, Glashutte Original gives this tradition-steeped complication a particularly contempor