Series One CHOPTANK ref. E250 available in a silver or copper dial with blued-steel hands. Designed by Hartwig Balke & George Thomas in 2016 with a limited production of 250 timepieces. Each finished and assembled by hand in the TWC Workshop in Baltimore, MD. Extending the utilitarian elegance of the Mission Chronograph into a tonneau-shaped case that tests the bounds of shape in classical watchmaking. Featuring a fully high-polish stainless steel case. Retired in 2018.
CALIBER 7751 25 Jewel Triple-Calendar Moon-Phase Chronograph
Features Glucydure Balance, Nivarox Hairspring, Incabloc Shock Absorption, blued screws, rhodium plating, perlage, skeleton rotor, 46hr power-reserve, Chronometer Grade Accuracy, Adjusted to 5 positions, Sourced from proprietary partner in Switzerland - delivered fully-assembled in accordance to standard ETA requirements - rebuilt by Towson Watchmakers - Decorated in Baltimore, MD.
FUNCTIONS Hours, Minutes, Small Seconds at 9:00, Central Chronograph Seconds with Stop/Start Pusher, 30-Minute Chronograph Counter at 12:00 - 12Hr Chronograph counter at 6:00, Date Hand at Center, Day of the Week at 12:00 (left side), month at 12:00 (right side), Moonphase Indicator at 6:00, 24-Hour Standard Time at 9:00
40x44mm Stainless Steel case with mirror-finish mid-section & lugs. Mirror-finish bezel and case-back with sapphire crystal exhibition display. 5 ATM depth rating. High-polish oval-shaped start & reset pushers and a quickset push-pull crown. Day-corrector operated through the pusher on the left side of the case. 13.5mm thickness and 20mm lug width.
The beacons shining light on the Choptank River stand today as sentinels of maritime history & industrial innovation in the Chesapeake Region. Having guided sailing schooners such as the Pride II, skipjacks, and steamboats through the shallow waters since the industrial boom. Reproduced years later to serve as a visual icon of local revitalization. The CHOPTANK E250 delivers the unique presence and utility of these beacons to the wrist while telling the story of American industrial pastime.
The 7751 caliber automatic movement (also used in the Mission Moon & Cockpit Moon) was remastered by Hartwig Balke to achieve chronometer-grade accuracy and allow for simplified operation of the day, date, month, 24-hour, 12-hour, moonphase, and chronograph counting functions. Each movement was reconstructed through 2021 - 2022 with the aid of TWC apprentice watchmakers.