A minute repeating split second chronograph with perpetual calendar by C.H. Meylan

C.H. Meylan, Brassus, for Spaulding & Co., Chicago, a minute repeating split seconds chronograph with perpetual calendar pocket watch, 40 jewels, stem wind and set, adjusted to 6 positions, temperature and isochronism cotes de Geneve decorated rhodium plated movement with counterpoised lever escapement, cut bimetallic balance with gold screws, and whiplash micrometric regulator, in an 18 karat yellow gold open face case, the back with engraved "JM" monogram, and the cuvette engraved "Joseph Mattes Oct. 1st, 1912", arabic numeral, outer red 5-minute markers, quadruple sunk white enamel dial with moon phase aperture at 6:00, plum colored steel spade and poker hands, serial #5634, 51mm, 129g TW, with the original velvet and silk lined mahogany box
Condition Report: CASE: Bezel with a few small dings and shallow dent on bezel, 6 - 7:00; Tiny dings; Very fine scratches on outer surface of case; Band with localized case knife marks; Cuvette with polishing marks; Hinges tight; All covers with tight snaps, particularly the cuvette; Bow tight; Crown with minor wear; Precious metal content marked. DIAL: Seconds bit with two faint hairlines; Month display with three faint hairlines. HANDS: Very good. MOVEMENT PLATES: Some localized darkening of plating; Hour hammer with tiny speck of oxide; Dirty; Otherwise very good. MOVEMENT FUNCTION: Running order (winds, sets and ticks). COMPLICATION: All function properly, would benefit from service. Box exterior with small dents and scratches; marring of finish; Interior good. A very nice example of this esteemed maker's work. The movement is exceptionally well finished, and in very good condition, ACCESSORIES: Box, circa 1910