Swiss watchmaker H. Moser & Cie prides itself on its clear and uncomplicated principles: an entrepreneurial spirit and in-house manufacture combined with unique and simple functions. The H. Moser & Cie Perpetual Calendar watch is one of this family-run business' signature models. With a clear and uncluttered dial, it explores the world of high-tech materials, with a case crafted out of black DLC coated titanium. The 40.8mm round case features a black dial displaying gold hour batons and hour and minute hands and a hacking seconds sub-dial at 6 o'clock. The innovative perpetual calendar is indicated by an ingenious small arrow hand pointing to the hour batons, which double as month indicators. The in-house built, hand-wound calibre HMC 341, visible through the sapphire case back, powers the watch for up to seven days, with the reserve discreetly indicated on the dial at 9 o'clock.