Stainless Steel, Oyster bracelet (SEL) with flip-lock Oysterclasp and Easylink extension link, black 'Cerachrom' ceramic bezel with engraved tachymetric scale, white dial, automatic Chronometer (Cal. 4130), 12-hour chronograph, screw-down crown and pushers, Ref. 116500LN, warranty dated February 2022, 40mm, Like New in Box with Papers
18k gold & Stainless Steel, Oyster bracelet (SEL) with flip-lock Oysterclasp and Easylink extension link, 18k tachymeter bezel, champagne dial, automatic Chronometer (Cal. 4131), 12-hour chronograph, screw-down crown, Ref. 126503-0004, warranty dated February 2025, 40mm, 99% Like New in Box with Papers
Stainless Steel head and bracelet with double push-button deployant, tachymeter bezel, grey textured dial, automatic (TH20-00), 12-hour chronograph, date, display back, Ref. CBN2A1F, warranty dated April 2021, 44mm, Retail = $7,550, Like New in Box with Papers
Carbon Fiber, black leather strap with rubber backing on tang buckle, tachymeter bezel, white / black dial, automatic, 45-minute chronograph, date, screw-down crown, limited edition of 2025 pieces, Ref. m79377kn-0001, warranty dated July 2025, 42mm, New in Box with Papers + 2 Year BW Warranty
Black carbon composite case, blue fabric strap with Velcro on tang buckle, titanium bidirectional bezel, dark blue dial, automatic (Cal. MT5813), 45-minute chronograph, date, screw-down crown, Ref. m25807kn-0001, warranty dated June 2025, 43mm, Retail = $6,200, 99% Like New in Box with Papers
Carbon Fiber (Carbon & Microblasted Titanium), black + orange rubber straps and black Velcro strap with deployant clasp, black skeltonized dial, automatic (El Primero 293), 30-minute chronograph woth a central chrono hand that rotates once per second, chronograph power reserve indicator at 12', separate power reserves for time and chronograph, Ref. 10.9100.9004/22.I200, warranty dated September 2022, 45mm, Retail = $26,800, 99% Like New in Box with Papers
Stainless Steel, Navitimer bracelet with flip-lock clasp, bidirectional slide rule bezel, silver / black dial, automatic Chronometer (Cal. 13 (base ETA Valjoux 7750)), 12-hour chronograph, date, Ref. A1332412/G796, warranty dated January 2017, 41mm, Like New in Box with Papers
Stainless Steel, Oyster bracelet (SEL) with flip-lock clasp, tachymeter bezel, white dial, automatic Chronometer (Cal. 4030 (base Zenith El Primero 400)), 12-hour chronograph, screw-down crown and pushers, Ref. 16520, A serial, ca. 1999, CPO dated December 2025, 40mm, Mint with CPO set and CPO papers
Chronographs are watches with the integrated capabilities of a stopwatch. The idea of the chronograph was first conceived in 1776 as a way to record the time of a projectile's flight, but the first commercially built chronograph didn't appear until 1816, and was used by King Louis XVIII to record the time of horse races.
The modern automatic chronograph was revealed by in 1969, first by Seiko, then by the Chronomatic collaboration (Heuer, Breitling, Hamilton, and Dubois-Depraz), and finally by Zenith. The term "chronometer" is often confused with "chronograph" -- the former is a chronograph that has been certified by the Controle Officiel Suisse des Chronometres, the institute responsible for verification and certification of the accuracy and precision of wristwatches in Switzerland.