Tudor Black Bay Chronograph Steel & Gold UNWORN

More about Black Bay Chronograph Steel & Gold UNWORN

This is a stainless-steel and 18k yellow gold Tudor Black Bay Chronograph S&G 79363N. It includes a bund- style leather strap (covering the case back) with a stainless-steel folding deployment clasp and a scratch resistant sapphire crystal. It includes gold screw-locked chronograph pushers, a signed screw down gold winding crown, and a solid screw down case back. The 41.5mm diameter solid three-body case, gently curved lugs, and flat angled 18k gold bezel with an anodized aluminum ring and a gold tachymeter scale to 500 UPH, are polished/brushed. The dial is black with luminous gold "snowflake" hour and minute hands, circular luminous applied hour markers, a center sweep second hand with a circular counterbalance and a red arrow tip, and a gilt perimeter 1/5 second/minute scale. It has twin "pie-tin" gold circular recessed subsidiary dials with concentric circle guilloche, black Arabic numerals, markers, and indicator hands, including a constant running small seconds register at 9 o'clock, and a 45-minute chronograph totalizer at the 3 o'clock position. A date aperture window is at 6 o'clock, and it has a Certified Official Superlative Chronometer (COSC) rating. It has a 70-hour power reserve at full winding, it's water resistant to 200 meters/660 feet, and the 14.5mm thick case, dial, and movement are all signed. This Tudor Black Bay Chronograph S&G 79363N has a mechanical automatic self-winding Tudor Caliber MT5813 (base Breitling BO1) column wheel chronograph movement with a vertical clutch. It's rhodium-plated with fausses cotes embellishment and it's constructed with 47 jewels, a shock absorber device, and a straight-line lever escapement. It includes a monometallic balance, a silicon self-compensating flat balance spring, and a hacking seconds device for precision time setting. The mechanism oscillates at a frequency of 28,800 vph (4 Hz). The Tudor Black Bay Chronograph S&G 79363N was introduced in 2019.

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