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Platinum Wrist Chronometer no. 6128

Case: Platinum, hinged rectangular case, Length 41 mm.

Dial: Silvered matte dial, arabic numerals, subsidiary seconds

Movement: s/n; 6128, tonneau caliber 10 ligne, nickel lever movement, 18 jewels, bi-metallic compensation balance, 2 Poincon de Geneva quality seals, obtained at September 18, 1929. This watch was from a batch of 12 watches from the same date with movement serial number; 6123 - 6128 and 6237 - 6242.

Provenance:
1935 - Niton, Geneva

1989 - Sothebey's

1990 - Christies, Geneva

Sothebey's, November 14, 1989, Lot 224. A Platinum Rectangular Wristwatch, Niton, circa 1935, tonneau nickel lever movement, 18 jewels, bi-metallic compensation balance, movement stamped twice with the seal of Geneva, silvered matte dial, arabic numerals, subsidairy seconds, hinged rectangular case. Length 41 mm. SF 2.500-3.500

Christies, May 16, 1990, Lot 73, page 40. Niton. A rectangular platinum wristwatch. Signed Niton, Geneve, Swiss, No. 6128, circa 1928 with tonneau-shaped 18-jewel nickel-finished movement, bearing Geneva control marks and with 8 adjustments, bi-metallic screw compensation balance with overcoil spring and regulator, silvered dial signed Niton with Arabic chapters, subsidiary seconds, blued-steel hands; case plain with engraved band - 41 mm long. Niton supplied Ebauches movements to Patek Philippe. See P.P.W. page 210. Sfr 5,000-7,000