From Omega, a legend of Swiss watchmaking, this is a highly collectible and iconic model bearing the reference number 198.012 from the Seamaster Electronic f300Hz series, powered by groundbreaking tuning fork technology introduced in the early 1970s. Featuring its f300Hz movement that delivers a continuously sweeping seconds hand, a raised red-backed Omega logo on the dial, and a solid circular brushed steel case, it stands as a extraordinary timepiece capturing the full technological spirit of its era. ​Technical Specifications ​Brand / Model / Reference: Omega Seamaster Electronic f300Hz Chronometer Officially Certified – Ref. 198.012 (Vintage) ​Movement: Powered by an original Swiss-made, 12-jewel (12 Jewels), legendary chronometer-certified tuning fork electronic Omega Caliber 1250 movement (ESA 9162 license). Producing its signature sweet humming sound during operation and offering a seamlessly sweeping seconds hand, this copper-finished mechanical-electronic layout is displayed in full detail in image . A quickset date window is positioned at 3 o'clock ​Case Dimensions:41 mm including the winding crown Thanks to its integrated bracelet design and circular steel cascade case structure, it delivers a very bold, broad, and captivating presence on the wrist Case profile and crown details can be inspected in images ​Case & Crystal Structure: Crafted from high-grade solid stainless steel. The top surface of the case displays its original circular brushed texture Hairline scratches true to period use are present on the watch case and crystal . Upon the buyer's request, the scratches on the crystal can be polished/cleaned prior to shipment for a smooth finish. ​Caseback: Original stainless steel screw-down caseback. The outer surface features the iconic embossed Seamaster Seahorse emblem The inner caseback clearly displays the "Omega Watch Co. - Fab. Suisse - Swiss Made - Acier Inoxydable" hallmarks, the "Movement Licenced Bulova & Pat." stamp, and the original 198.012 reference number ​Dial and Hands: An original dial set against a deep matte black background, featuring a raised red-backed Omega emblem, white baton indices, and high-contrast hands . The dial remains in very clean condition. ​Condition & Accessories Details ​Operational Status: The high-condition Caliber 1250 f300Hz movement, date transition, and sweeping seconds hand operate accurately, fluidly, and flawlessly ​Bracelet & Bonus Strap: The watch comes fitted with its stainless steel bracelet featuring the original Omega logo on the clasp . The original steel bracelet comfortably fits wrist sizes up to approximately 16 cm Additionally, to accommodate different wrist sizes and offer an alternative styling option, a complimentary leather strap will be included with the watch as a gift. ​Please Note: The f300Hz sweeping-seconds tuning fork technology is one of the most iconic transitional achievements in horological history. Age-appropriate marks on the case and crystal . Due to its vintage/antique nature, no water resistance warranty is provided. For cross-border or international shipments, any potential customs duties, taxes, or additional clearance fees are entirely the responsibility of the buyer. Please review all macro photos carefully before finalizing your purchase.