The Perpetual 1 is an award-winning timepiece receiving the prestigious Golden Unruh (Golden Balance) award in 2010 for technical innovation. Presented by Uhrenmagazin, one of Germany’s top horology magazines, readers voted for the Perpetual 1 for its unique perpetual calendar movement, and contemporary design. Unlike any other perpetual calendar movement, the details are subtle and beautifully integrated into the mechanism. The small arrow at the center post intrigues collectors, and rather than display months of the year via the typical subsidiary dial or aperture, H. Moser & Cie uses the 12-hour markers with the arrow pointing to the correct month. The leap year indication is seen on the movement through the sapphire crystal caseback. The date window is visible at 3 o’clock alongside the crown that features a patented double pull setting mechanism allowing the wearer to set the date forwards or backwards. All calendar indications change instantaneously at midnight.

Making its debut in 2020, the present example featuring a DLC-coated titanium case with the firm’s signature blue fume dial is part of a rare, limited edition of 10 pieces. Exuding a stealthy and cool appeal, the present example is also numbered 0 out of 10 making this a prototype example of the model. Offered in “like new” overall condition with its original accessories, this Moser Perpetual 1 is certainly one not to be missed by collectors of fine horology.