Dies ist eine Citizen Hisonic, neben der Accutron und der Unisonic von Universal Genève die einzige Stimmgabeluhr mit dem Bulova 2182 Werk. Werk N° 41003588, Citizen Caliber 3701A, Referenz Nr.: 3702-370295 TA, Beschriftet vorn: ”CITIZEN, Tuning Fork, Hisonic, Japan 3702-370295”, Rückseite: ”GN-4-S,Water Resist, Tuning Fork, Stainless Steel, Citizen, 3702-370295 TA, 31200378”, innen: “3701A, Citizen, Japan, 15J”, Edelstahl Gehäuse, Day/Date bei der 3. Citizen stellte die Bulova Stimmgabelwerke für den Fern Ost Markt für Bulova her.

A Citizen Hisonic, besides the Accutron and the Unisonic of Universal Genève the only tuning fork watch with the Bulova 2182 movement. Mvmt N° 41003588, Citizen Caliber 3701A, Reference Nr.: 3702-370295 TA,  signed front: ”CITIZEN, Tuning Fork, Hisonic, Japan 3702-370295”, back: ”GN-4-S,Water Resist, Tuning Fork, Stainless Steel, Citizen, 3702-370295 TA, 31200378”, inside: “3701A, Citizen, Japan, 15J”, Stainless steel case, Day/Date at 3. Citizen manufactured the tuning fork movements for Bulova to supply the far east market with Bulova watches.