Brand: Citizen | Model: The CITIZEN Tosa Washi Limited Edition "Tengujoshi" Red Dial | Reference: AQ4100-65X | Category: Japanese Dress Watch / Limited Edition Eco-Drive | Release Year: 2026
Last updated: September 30, 2026
The CITIZEN AQ4100-65X is a 2026 limited edition with a crimson Tosa washi paper dial, handmade by artisans in Kochi Prefecture, Japan. It pairs a 38.3mm Super Titanium case with the Eco-Drive Caliber A060, accurate to ±5 seconds per year. Limited to 350 pieces worldwide at $2,995.
What is the Citizen AQ4100-65X? It is a new 2026 limited edition from The CITIZEN, Citizen's premium high-accuracy collection, and the first washi dial in the line to use Tengujoshi paper — the thinnest and most delicate grade of Tosa washi. Because Tengujoshi is too fragile to dye, Citizen places a translucent crimson layer over the paper instead, so the natural fibre texture still shows through while light passes down to power the Eco-Drive movement. The 38.3mm x 12.2mm case and bracelet are Super Titanium with a Duratect Platinum coating, chosen to contrast the deep red dial. Inside is Caliber A060, an Eco-Drive light-powered movement rated to ±5 seconds per year, with a perpetual calendar, instant date change and roughly 1.5 years of power reserve in power-save mode. Why it matters: washi dials have been a signature of The CITIZEN since 2017, and this release lands during Citizen's 50th anniversary of Eco-Drive. At 350 pieces and $2,995, it competes directly with Grand Seiko's 9F quartz models in the high-accuracy Japanese dress-watch segment.
Limited to 350 unnumbered pieces worldwide. The first Tengujoshi washi dial in The CITIZEN line makes this a distinctive reference for collectors of Japanese craft dials. Released during Citizen's 50th anniversary of Eco-Drive, a milestone year that tends to add long-term interest. Expect quick sell-through at authorized dealers.
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