Discover the Exciting Return of the Citizen Challenge Timer “Tsuno”
The Citizen “Bullhead” chronograph is back, this time as the stunning Challenge Timer, inspired by designs from the 1970s. After a successful run in Japan, Citizen is reintroducing this iconic model to the European market, featuring the distinctive layout with the pushers and crown positioned at the top of the case.
This re-release has garnered much excitement, especially after Brad Pitt donned a Citizen Bullhead in Once Upon A Time In Hollywood. Now, with a quartz movement and an accessible price tag of just €229, the Challenge Timer is set to attract a wider audience, welcoming both veterans and newcomers to the world of Citizen timepieces.
The All-New Citizen Challenge Timer “Tsuno”
Citizen has crafted this Challenge Timer with inspiration straight from the original 1973 design. The 38mm case diameter keeps it true to vintage dimensions, pleasing collectors who appreciate authenticity.
The nickname “Tsuno,” meaning “horn” in Japanese, perfectly captures the pusher design at 11 and 1 o’clock. This layout is reminiscent of handheld stopwatches, allowing for easy operation. After trying out the Challenge Timer, I can confirm that the ease of use is as impressive as ever.
Positioned as an entry point into Bullhead chronographs, this model features an in-house quartz movement, marking a shift from the original mechanical design. The lower price and simplified maintenance make it a fantastic option for younger enthusiasts or collectors who appreciate vintage charm without the typical vintage headaches.
Key Specifications of the Citizen Challenge Timer
The Citizen Challenge Timer “Tsuno” boasts a stainless steel case, with dimensions of 38 × 11.7mm, mirroring the original model’s size. The dial is protected by a durable mineral crystal, and the case shape elegantly accommodates the top-mounted pushers without compromising wrist comfort. The watch comes with a simple stainless steel bracelet featuring single-row folded links and a sliding clasp akin to a steel Milanese mesh.
At its core lies the reliable in-house quartz caliber 0510, which includes a chronograph capable of measuring up to 12 hours with a one-second resolution. The movement also features a convenient date function, displayed at 4:45 on the dial, and maintains accuracy within ±20 seconds per month.
Citizen has thoughtfully released two dial variations. The standard model presents a classic white panda dial with striking black sub-dials, while a limited edition features a luminous green dial, capped at just 4,000 pieces. Both options include vibrant orange accents on nearly all hands, sparking visual interest without sacrificing functionality.
The Experience of Wearing the Challenge Timer “Tsuno”
Sporting this Bullhead watch instantly transports you back to vintage styles. Its pebble-shaped case sits a bit taller on the exceptionally slender bracelet, which can feel slightly top-heavy. While this watch may not conform to the typical wrist-hugging design, it provides a unique wearing experience that adds charm and character.
Personally, I favor the classic panda edition over the teal-lume-dial variation, as it feels classier and more sophisticated. The panda dial radiates that coveted vintage vibe, while the luminous edition feels a touch over-the-top.
The bracelet stands out for its comfort, owing to its slim profile and short links. While some watches may feel more secure on the wrist, the bracelet performs its function admirably. Overall, the Citizen Challenge Timer impresses at a very reasonable price of €229. My only critique lies with the date display, which might look better positioned at 4:30 instead of 4:45. Nonetheless, this watch is light-hearted, fun, and expertly designed.
What are your thoughts on the new Citizen Challenge Timer “Tsuno” chronographs? We’d love to hear your opinion in the comments below.
Watch Specifications
Model
Challenge Timer “Tsuno”
Reference
AN3660-81A (panda dial) / AN3660-73X (full-lume limited edition)
Dial
White with black sub-dials and rehaut, applied luminous indexes, date window, orange chronograph and sub-seconds hands / Full-lume teal with matching sub-dials and rehaut, applied luminous indexes, date window, and orange chronograph and sub-seconds hands
Case Material
Stainless steel with brushed finish, black-coated polished bezel, polished pushers and crown
Case Dimensions
38mm (diameter) × 11.7mm (thickness)
Case Back
Stainless steel, press-in
Movement
Citizen 0510: quartz caliber, accurate to within ±20 seconds per month
Water Resistance
5 bar (50 meters)
Strap
Stainless steel bracelet with single-row folded links, adjustable sliding clasp with safety lock
Functions
Time (hours, minutes, seconds), date, chronograph (12-hour and 60-minute registers, central elapsed seconds), tachymeter (AN3660-73X only)










