Tudor Tudor Oysterdate Chronograph "Big Block" C. 1994


Tudor Oysterdate Chronograph 79160 "Big Block", stainless steel case on a stainless steel 78360 Tudor bracelet with 589 endlinks, automatic movement, white dial with black subdials and date at 3 o'clock under a cyclops magnifier, chronograph, screw-down Oyster crown and pushers, plastic crystal, B56xxxx serial (c. 1994) water resistant to 100m/330ft, diameter: 40mm, thickness: 14.5mm, Like New with original box , service papers (6/11/2019), and hang-tag.

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More about Tudor Oysterdate Chronograph "Big Block" C. 1994

This is a stainless steel Tudor Oysterdate Chronograph 79160 "Big Block", with a case made by Rolex in Geneva. It has an integral stainless steel 78360 Tudor bracelet with 589 endlinks, and a Plastic crystal. There is a protected Rolex Triplock screw-down winding-crown, screw-down chronograph push buttons, and a screw-down solid case back engraved with the Rolex crown and "ORIGINAL OYSTER." The 40mm diameter solid three-body case, straight lugs, and flat black bezel with an anodized aluminum insert with a tachymeter graduation to 500 UPH, are polished/brushed. The dial is white with black subsidiary dials, luminous steel baton hands, applied baton hour markers and luminous dot indices, around a perimeter minute/one-fifth second scale. It has a center sweep chronograph hand with a white arrow tip, and there is a date aperture at the 3 o'clock position underneath a Cyclops magnification lens. There are three subsidiary dials including a running seconds register at 9 o'clock, a 12-hour chronograph totalizer at 6 o'clock, and a 30-minute chronograph indicator at 12 o'clock, all with luminous hands. It has a 40-hour power reserve at full wind, and it's water resistant to 100 meters/330 feet. The 14.5mm thick case, dial, and movement are all signed. This Tudor Oysterdate Chronograph 79160 has a mechanical automatic self-winding Tudor/Valjoux caliber 7750 movement. It's rhodium-plated with fausses cotes embellishment. It's constructed with 25 jewels, a shock absorber device, polished screws, and a straight-line lever escapement. It includes a monometallic balance, a self-compensating flat balance spring, an engraved gilded rotor, and a micrometer regulator. The Tudor Oysterdate Chronograph 79160 "Big Block" is a second generation revamp introduced in 1989.

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