Citizen Revs Up the Promaster Tsuno Chrono Racer With Limited-Edition Flyback Precision

Citizen Promaster Tsuno Chrono Racer AV0104-06W Brings 1970s Racing Style Back to the Wrist

Citizen is leaning into vintage motorsport energy with the launch of the Promaster Tsuno Chrono Racer AV0104-06W, a limited-edition bullhead chronograph that blends retro design, modern durability, and the brand’s light-powered Eco-Drive technology.

The watch takes clear inspiration from Citizen’s 1970s racing chronographs, especially with its distinctive “Tsuno” layout. Tsuno means “horn,” referring to the unusual placement of the crown and chronograph pushers at the top of the case. This bullhead configuration gives the watch its standout personality, while also making the stopwatch controls easy to operate when worn on the wrist.

At 44.5mm, the stainless steel case has a bold presence, but Citizen has shaped it with a curved, ergonomic profile to help it sit more comfortably. The two-tone finish adds to the vintage appeal, with a polished gold-tone bezel and matching chronograph pushers giving the design a more premium look. A second crown positioned at 5 o’clock controls the alarm function.

The dial is one of the biggest highlights of the Promaster Tsuno Chrono Racer. Citizen has chosen a deep British racing green, a color strongly associated with classic motorsport. Dark subdials, faceted gold-tone hour markers, and crisp white accents create a layered, instrument-like appearance that feels both nostalgic and technical.

Under the anti-reflective sapphire crystal, the dial includes four key sub-register areas. The chronograph minute counter sits at 12 o’clock, while the chronograph hour totalizer is placed at 6 o’clock. Running seconds are displayed at 3 o’clock, and a sweeping power reserve indicator stretches across the left side of the dial. There is also a small alarm on/off display near 4:30, plus a framed date window positioned between 1 and 2 o’clock.

Powering the watch is Citizen’s hand-assembled Eco-Drive Caliber E210 movement. This light-powered movement draws energy from natural or artificial light, removing the need for routine battery changes. It also supports a 1/5-second flyback chronograph capable of measuring up to 12 hours, making it more than just a stylish retro-inspired piece.

The Caliber E210 also adds useful everyday functions, including an alarm, date display, and power reserve indicator. Combined with 200 meters of water resistance, the Promaster Tsuno Chrono Racer is designed to be both collectible and practical.

Citizen completes the watch with a thick dark brown leather strap and a deployant clasp with gold-tone detailing. The strap choice enhances the vintage racing character while keeping the overall look refined enough for casual or smart-casual wear.

The Citizen Promaster Tsuno Chrono Racer AV0104-06W is limited to 5,000 unnumbered pieces worldwide. It is priced at $1,350 in the United States and CA$1,795 in Canada. Each watch comes packaged in a custom tackle box, adding an extra collectible touch for buyers.

Key specifications include a 44.5mm stainless steel case, green dial, sapphire crystal, Citizen Eco-Drive Caliber E210 movement, 1/5-second flyback chronograph, 12-hour timing capacity, alarm, date display, power reserve indicator, leather strap, push-button deployant clasp, and 200 meters of water resistance.

With its bullhead case layout, racing-green dial, gold-tone details, and solar-powered chronograph movement, the Citizen Promaster Tsuno Chrono Racer AV0104-06W is a strong choice for collectors who want a modern watch with unmistakable 1970s motorsport character.