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.
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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