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Frederique Constant | Classic Index, Tritium Lume | FC-303X6B4/6 | Rp 9.800.000 | | est. 2012 | Watch Only | 43mm | Dress Watch | Automatic

A Swiss watch with a Japanese case exterior. While the 43mm polished case presents a GS silhouette, the dial reveals a distinct characteristic : T25 tritium. Unlike Super-LumiNova which requires light to charge, Tritium offer constant, self-powered luminosity—a feature typically reserved for tactical field instruments.


Established in 1988 by Aletta and Peter Stas, Frederique Constant challenged the Swiss status quo by enabling access of high-end complications through industrial efficiency. The Geneva-based manufacture pivoted to vertical integration early, launching its inaugural in-house Heart Beat caliber in 2004 to expose the balance wheel on the dial side.

While the brand’s aesthetic leans heavily on classical Breguet-style guilloché and Roman numerals, its operational strategy focuses strictly on value-driven movements. Under the aegis of the Citizen Group since 2016, Frederique Constant remains the primary entry point for collectors seeking manufacture movements without the prohibitive premiums of heritage brands.


Overall Grade: 8 / 10 | Great Condition, Visible Wear Production: est. 2012 Contents: Watch Only Genre: Dress Watch
Size: 43mm Thickness: approx. 11mm Lug Width: approx. 22mm
Case: Stainless steel, mirrored finish, visible wear Bezel: Stainless steel, fixed dome bezel, mirrored finish, visible wear Dial: Gloss black dial, applied silver indices, date aperture at 3 o'clock Hands: Steel Dauphine hands with Tritium lume
Crown: Stainless steel, screw-down crown, visible wear Crystal: Sapphire crystal, visible wear Bracelet: Stainless steel bracelet, visible wear Caseback: Sapphire transparent caseback, screw-down, visible wear Movement: Automatic Caliber: FC-303