Seamaster Railmaster 40mm Grey Dial | Ref. 220.10.40.20.06.001 | 2023 Like-New Full Set

The Story

Introduced in 1957 alongside the Seamaster 300 and the Speedmaster as part of Omega’s legendary "Professional Trilogy," the original Railmaster (CK2914) was purpose-built for railway staff, scientists, and engineers working near strong magnetic fields. Reference 220.10.40.20.06.001 reimagines this utilitarian icon for the modern era. Now officially discontinued, this reference features an uncommon vertically brushed slate-grey dial that shifts dramatically under shifting light. Bypassing modern polished surfaces in favor of a 100% matte-brushed finish, it represents the purest, most understated alternative for collectors seeking an anti-magnetic tool watch outside the mainstream sports lineup.

The Craft: Fully Brushed Architecture & Master Chronometer Calibre 8806

The 40mm stainless steel case is executed with a uniform satin-brushed finish across its bezel, flanks, and lugs, eliminating glare and reinforcing its functional tool-watch identity. The caseback features Omega’s patented Naiad Lock system, ensuring all engraved text and the iconic Seamaster Seahorse medallion remain in alignment.

The vertically brushed grey dial provides depth, textured with a denim-like brush stroke. It features transferred railway track minute markers, printed 3, 6, 9, and 12 Arabic numerals, and recessed triangular indices filled with vintage-toned "Old Radium" beige Super-LumiNova. The layout is balanced by brushed steel hands and a vintage-style lollipop central seconds hand, completely omitting a date window for clean symmetry.

Protected behind the solid Naiad Lock caseback beats the In-house Co-Axial Master Chronometer Calibre 8806. Certified by METAS (the Swiss Federal Institute of Metrology), this automatic engine is fitted with a silicon Si14 balance spring, providing resistance to magnetic fields exceeding 15,000 gauss. Operating at 25,200 vph with a 55-hour power reserve, the movement supports a screw-down crown delivering 150 meters (500 feet) of water resistance.

Condition & Discontinued 2023 Factory Warranty Full Set

This collector-favorite Railmaster is presented in Like-New condition, showing minimal signs of handling across its brushed case, bezel, and domed sapphire crystal. The fully brushed stainless steel bracelet remains tight and fresh, secured by an authentic Omega butterfly folding clasp.

The timepiece arrives as a True Complete 2023 Full Set, complete with its original Omega presentation box, outer packaging, operating manuals, card holder, Pictogram card, METAS Master Chronometer card, and the official international warranty card dated in 2023—guaranteeing active factory warranty coverage through 2028. Fully inspected and tested by our master watchmakers, this discontinued grey-dial grail is backed by our 1-year Honeyrock mechanical warranty.