Chronoswiss Perpetual Calendar 18K Rose Gold 40MM


Chronoswiss Perpetual Calendar CH 1721, Reference CH-1721 or CH1721 or CH-1721R, 18K Rose Gold on a Strap with an 18K Rose Gold Buckle, Automatic Movement, Perpetual Calendar, Day of the Week at 9 O'clock, Moon phase at 6 O'clock, Date of the Month at 3 O'clock, Leap Year Indicator + Month at 12 O'clock, Constant Seconds, Display back, Size : 40mm, Thickness : 13mm, Water Resistant, Additional Rose Gold Bracelet Available, Like New with Orignal Box and Papers.

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More about Perpetual Calendar 18K Rose Gold 40MM

This is an 18k rose gold Chronoswiss Perpetual Calendar CH-1721R. It includes an alligator leather strap with an 18k rose gold folding deployment buckle and scratch resistant non-reflective sapphire crystals. It has a large signed fluted spherical pull-out winding crown, correctors for the calendar functions on the left-side case band at 8, 10, and 11 o'clock, a corrector on the right-side case band at 4 o'clock, and there is a screw down exhibition sapphire display crystal case back with hallmarks underneath the lugs. The 40mm diameter round solid 3-body case, curved screwed scalloped lugs, and convex bezel, are polished/brushed. The dial is sterling silver with blued "Poire Stuart" spade hour and minute hands, a blued "observatoire" style center sweep constant seconds hand, and it has large black Roman numeral hour markers around a black perimeter railway-style second/minute scale. There are four recessed silver subsidiary dials with black/red Arabic numerals, markers, and blued leaf-shaped indicator hands, including a radial day register at 9 o'clock, a color moon phase dial at 6 o'clock, a radial date counter at 3 o'clock, and there is a combination month/leap year dial at the 12 o'clock position. It has a 40-hour power reserve at full winding, it's water resistant to 30 meters/100 feet, and the 13mm thick case, dial, and movement are all signed. This Chronoswiss Perpetual Calendar CH-1721R has a mechanical automatic self-winding C.127 nickel finished lever movement with a Dubois Depraz 5800C perpetual calendar module. It's constructed with 30 jewels, an Incabloc anti-shock system, a monometallic balance, a rose gold ball-bearing rotor, and the mechanism oscillates at a frequency of 21,600 vph (3Hz). The Chronoswiss Perpetual Calendar CH-1721R was introduced in 2006.

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