During the 1950s, Patek Philippe developed solar clocks as a means to demonstrate their innovative nature following the creation of their Electronics Division in 1948 as the brand sought alternate forms of timekeeping, such as nuclear, electronic and photoelectric. Launched in the 1970s and inspired by the Golden Ellipse, a dress wristwatch, the Ellipse Solar Clock was both an expansion of that technology and a strategic response to the Quartz Crisis, a period when the watch industry faced intense competition from inexpensive, mass-produced quartz watches which pushed mechanical watchmaking to the edge of extinction. To remain at the forefront of innovation, Patek Philippe continued to embrace solar technology, integrating it into their exquisite desk clocks such as the example we have here, the reference 1505. Made of gilded brass, this is a desk clock that exemplifies Patek Philippe's commitment to luxury and technical prowess. Featuring a striking oval-shaped blue dial, echoing the aesthetic of the renowned Golden Ellipse collection, the ref. 1505 showcases the brand's ability to blend traditional elegance with modern technology. The use of solar power not only demonstrated Patek Philippe's adaptability but also reinforced their reputation for precision and sustainability, securing their position as a leader in the horological world amidst the rapidly changing landscape of the 1970s.

Clock is in excellent overall condition. Surface shows minor oxidation and light signs of wear. Dial shows little to no signs of aging. Clock is running at time of cataloging, but unsure of the age of the battery. Clock comes with an Extract of the Archives.

The ref. 1505 is the photo-electric clock of choice for any Patek Philippe Ellipse lover. Made with the same attention to detail as the Ellipse watches, these clocks from the 1970s and 80s are the ultimate retro accessory for your desk.