Most moon phase watches show the moon through a small half-circle window. The Mido Baroncelli Smiling Moon M027.407.11.010.01 turns that window into a wide grin, an aperture shaped like a smile in the lower half of the dial, and it gives a classic complication a cheerful personality.

A rotating disc behind the opening displays the eight main phases of the moon against a starry sky. The white grained dial is kept clean, with slim dauphine hands and a blued steel seconds hand for a dash of color. Powering it is the Mido Caliber 72, an automatic movement with a Nivachron balance spring for better resistance to magnetism and up to 72 hours of power reserve. The Baroncelli collection draws from the elegance of Milan's Galleria Vittorio Emanuele II, and the polished 39mm case carries that refined, architectural feel.

On its seven-row steel bracelet the watch feels supple and dressy, a good match for tailoring, yet relaxed enough for a weekend. It is a natural choice for someone who wants a poetic complication without a big or flashy case.

Baroncelli Smiling Moon 39mm white dial | M027.407.11.010.01

• Case: 39mm polished stainless steel
• Dial: white grained finish, dauphine hands, blued seconds hand
• Complication: smile-shaped moon phase aperture showing eight lunar phases
• Movement: Mido Caliber 72 automatic with Nivachron balance spring
• Power reserve: up to 72 hours
• Crystal: sapphire
• Caseback: open, showing the movement
• Bracelet: seven-row stainless steel, 20mm

A slim dress watch that puts a smile, quite literally, on the dial.