Citizen Promaster Land Tsuno Chrono AV0104-06W 50th Anniversary Limited Edition | Sapphire Crystal Bullhead Eco-Drive Chronograph Watch (44.5 mm, 200 m)

Professional Description

The Citizen Promaster Land Tsuno Chrono AV0104-06W is a collector’s item that pays tribute to the legendary 1973 Citizen Challenge Timer chronograph, popularly nicknamed in Japan as “Tsuno Chrono” (horned chronograph) or Bullhead, due to the distinctive placement of its crown and pushers at the 12 o’clock position. This exclusive Limited Edition commemorating the 50th Anniversary blends the retro aesthetics of motorsports’ golden age with cutting-edge solar technology.

Inside its robust stainless steel case with a bezel and gold-tone accents beats the prestigious Citizen E210 in-house caliber, a hand-assembled Eco-Drive movement with hybrid architecture that offers an instant mechanical feel to the chronograph pushers and a flyback function. Protected by a scratch-resistant sapphire crystal, a stitched genuine leather strap, and outstanding water resistance of 200 meters (20 bar)—unusual for classically inspired chronographs—this model represents one of the technical and aesthetic pinnacles of the Promaster Land line.

Key Features

• Iconic “Bullhead” (Tsuno Chrono) Design: Ergonomic layout of the crown and pushers on the top of the case (12 o’clock position), inspired by 1970s handheld racing stopwatches for quick, friction-free operation on the wrist.
• 50th Anniversary Limited Edition: A commemorative, limited-production run, highly coveted internationally by enthusiasts of historic timepieces and collectors of the Promaster series.
• Eco-Drive Caliber E210 Movement (Hand-Assembled): A high-end solar-powered caliber that combines the precision of quartz with the feel of a traditional mechanical chronograph. It features an instant reset (flyback) function and recharges from any light source, eliminating the need for battery replacement.
• Maximum-Hardness Sapphire Crystal: Crystal-clear optics with high resistance to impacts and accidental scratches, ensuring impeccable durability for everyday use.
• Professional Water Resistance to 200 Meters (20 ATM): High-pressure sealing that allows for use in intensive water sports, swimming, and recreational diving without compromising the integrity of the case.
• Power Reserve Indicator and Analog Alarm: Dedicated sub-dial for real-time monitoring of the energy stored in the battery and a programmable audible alarm system via an independent hand.

Technical Specifications

Component / Function Technical Detail
Brand and Collection Citizen Promaster Land (Tsuno Chrono)
Reference / Model AV0104-06W (50th Anniversary Limited Edition)
Movement Eco-Drive Solar Quartz (Manufacture Caliber E210, hand-assembled)
Dial Type Analog with 4 sub-dials featuring a reverse panda aesthetic
Case Material Stainless steel with high-resistance gold-plated bezel and pushers
Case Dimensions Diameter: 44.5 mm | Thickness: 15.3 mm
Crystal Flat sapphire crystal with maximum abrasion resistance
Strap High-density genuine leather, brown with hand-stitched detailing
Water Resistance 200 meters (20 ATM / 20 Bar)
Case Back: Screw-down with a special engraving commemorating the limited edition

Dial Functions and Technical Performance

• 1/5-Second Flyback Chronograph: Precision sports timing with instant reset and continuously sweeping hands that emulate traditional mechanical movement.
• Built-in Alarm: Independent alarm setting with audible signal and visual on/off dial on the face.
• Charge Level Indicator: Dedicated hand showing remaining energy in the battery for preventive monitoring of the solar reserve.
• High-Visibility Luminescence: Faceted hands and hour markers treated with high-brightness luminescent paste for instant readability in low-light conditions.
• Functional Calendar: Date window at 4:30, harmoniously integrated into the dial design without interfering with the sub-dials.