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Auktionen Dr. Crott 91st Auction

634 633 Omega “Chronotachymetre”, Cadran Breveté S.G.D.G., 59 mm, 167 g, circa 1910  A gentleman’s rare pocket watch in a splendour niello silver case with chronograph and polychrome S.G.D.G. dial and tachy scale Case: niello silver, engraved back cover depicting a hunter scene, glazed movement with engraving: “Chronotachymetre Omega Breveté”, pusher for chronograph via crown. Dial: enamel, Arabic numerals, 15 min. counter, concentric tachy scale, gold spade hands. Movm.: 4/5 plate movement, frosted, gilt, very finely ground chronograph steel parts, ratchet wheel, screw compensation balance, index spring fine adjusting device. S.G.D.G. Tachymeter Dial The tachymeter dial allows the measuring of any speed between 10.5 and 140 miles per hour without the help of calculations. 15-minute counters starting with 5 individual minute segments in different colours to indicate which colour will show the speed on the spiral tachymeter scale. Source: Marco Richon “Omega”, 2007, p. 520-523 歐米茄 “Cadran” Breveté S.G.D.G. — 罕見的華麗烏銀錶殼男仕懷 錶,附碼錶,S.G.D.G. 速測儀錶盤及刻度 40504  C: 2 D: 2 M: 2, 41  4.800 - 5.800 EUR 5.300 - 6.400 USD 43.200 - 52.200 HKD Omega, Movement No. 7567609, Case No. 1931.3, Cal. 39 CHRO, 55 mm, 115 g, circa 1934  A gentleman’s attractive pocket watch with chronograph in a rare niello-silver case with matching niello-silver watch chain Case: silver, stylized foliage decor, pusher for chronograph via pendant. Dial: enamel, Arabic numerals, auxiliary seconds, 30 min. counter, blued spade hands. Movm.: 2/3 plate movement, frosted, gilt, very finely ground chronograph steel parts, ratchet wheel, gold screw compensation balance. 歐米茄 — 引人注目的男仕懷錶,附碼錶,罕見烏銀錶殼及同系 列烏銀錶鍊 40523  C: 2 D: 2 M: 2, 41  1.200 - 1.800 EUR 1.400 - 2.000 USD 10.800 - 16.200 HKD