8,750 CHF
ROLEX REF. 6556 TRU – BEAT BLACK DIAL Rolex, “Oyster Perpetual Officially Certified Chronometer", “Tru Beat”, case No. 674228, Ref. 6556. Made in 1960 . Fine and rare, dead center-seconds, water-resistant, stainless steel wristwatch. Three-body, polished and brushed, curved lugs, inclined bezel, screwed-down case back and crown. Black with applied steel baton indexes, luminous dots, outer minutes/seconds divisions. Luminous steel dauphine hands, red seconds hand. Cal. 1040, rhodium-plated, 25 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating blued steel Breguet balance spring, index regulator. Dial, case and movement signed. Diam. 35 mm. Thickness 13 mm. Notes Ref. 6556 This reference was produced predominantly in stainless steel and very few examples in gold. The 1960 catalogue stated that the system was to be replaced by the new reference 1020, but this never occurred. The interesting extra mechanism for the dead seconds is made of beryllium and features a lever that allows the seconds wheel to jump, therefore allowing the usual going seconds hand with a beat of 18,000 to beat once per second.
Auctioneer:
Antiquorum
Date:
2012-03-11
