Vacheron Constantin FiftySix Complete Calendar with Moonphase in Stainless Steel. Rare solid brass grey silver-toned dial with applied Arabic numerals and baton hour markers, luminous hands, central sweep seconds hand, complete calendar display. The 40mm diameter barrel-shaped two-body case, straight scalloped lugs, and convex bezel, are polished. It has a silver dial with a large circular center surrounded by an outer white railway-style hour/minute scale and there is a wide brushed reserve with applied polished steel Arabic numeral at the even hours, luminous Super-LumiNova rectangular baton hour indices, and there is a silver guilloche perimeter chapter ring with a luminous white radial date scale. It has twin aperture windows underneath the 12 o’clock position for the day and month and there are pointed polished steel hour and minute hands with luminous inserts. It includes a center sweep second hand with an arrow counterbalance and a blued arrow-tipped center indicator hand for the perimeter date. There is a color hemispherical moon phase subsidiary dial at 6 o’clock. It has a 40-hour power reserve at full winding, it’s water resistant to 30 meters/100 feet, and the 11.6mm thick case, dial, and movement are all signed. It includes a stainless-steel case on an alligator leather strap with a stainless-steel deployment buckle and scratch-resistant sapphire crystals. It has a signed screw-down winding crown and correctors for the calendar functions at 8 o’clock on the left-side case band, and another is at 4 o’clock on the right. It has an exhibition screw-down sapphire crystal display case back.

This Vacheron Constantin Fifty-Six Complete Calendar 4000E/000A-B439 has a mechanical automatic self-winding Vacheron & Constantin caliber 2460 QCL/1 movement. It’s rhodium plated with Cotes de Geneve embellishment and it’s constructed with 27 jewels, an anti-shock system, a monometallic balance adjusted for 5 positions, and a self-compensating flat balance spring. There is a skeletonized 21k gold rotor with a gold Maltese Cross emblem. The mechanism oscillates at a frequency of 28,800 vph (4Hz). 

Heir to a model from 1956, this steel watch features a precision moon phase that is accurate over 122 years. This poetic complication is finished with day, date, and month displays. Embellished with blue, the date hand and the moon phase disc contrast elegantly with the silver-toned dial. Its openworked caseback reveals an elevated oscillating weight in 22K gold, inspired by the Maltese cross.

Reference No. 4000E/000A-B439