Product Overview
The SXJ504 Mechanical Stop Watch is a precision handheld chronograph built for sports professionals, coaches, referees, and fitness enthusiasts who need accurate, reliable timing in active environments. Unlike battery-powered digital timers, this mechanical stopwatch operates without electricity, using a hand-wound movement that ensures consistent performance even in remote or demanding conditions. Designed with practicality in mind, it supports a range of timing needs—from tracking game intervals and training sessions to maintaining rhythm during rhythmic gymnastics or interval workouts. Its robust construction and intuitive one-button operation make it a trusted tool for anyone who values precision and durability. The included storage box and rope lanyard add convenience, protecting the device during transport and keeping it securely at hand during use.
Key Features
- One-Button Operation: The crown button controls all functions—start, stop, and reset—with consecutive presses. This simple, tactile interface allows for quick, distraction-free timing during fast-paced sports or training drills, eliminating the need to navigate menus or remember complex sequences.
- Durable Stainless Steel Construction: Crafted from high-grade stainless steel, the stopwatch resists corrosion, impacts, and daily wear. Its solid build provides a balanced, comfortable feel in hand, enhancing control and reducing fatigue during extended use.
- Large, Clear Digital Display: The prominent screen ensures time readings are visible at a glance, even from a distance or under challenging lighting conditions such as bright sunlight or dimly lit gyms. This clarity is essential for referees and coaches who need to monitor time without interrupting the flow of activity.
- Metronome Function: Integrated metronome capability helps users maintain consistent rhythm during fitness routines, gymnastics exercises, or timed drills. This feature supports pacing in interval training, coordination practice, or performance routines where timing precision is critical.
- Mechanical Movement with 13 Gemstones: The internal mechanism incorporates 13 synthetic gemstones to minimize friction between moving parts, promoting smoother operation and greater longevity. This design enhances accuracy over time and reduces the need for frequent maintenance.
- Wide Operating Temperature Range: Functions reliably from -10℃ to +40℃, making it suitable for use in cold outdoor environments, heated indoor facilities, or variable climate conditions. This adaptability ensures consistent performance whether timing a winter training session or a summer competition.
- Dust, Water, and Shock Resistant: Engineered to withstand the rigors of sports and fitness environments, the stopwatch resists dust ingress, moisture exposure, and minor impacts. While not fully submersible, it can endure splashes, light rain, and accidental drops—ideal for outdoor fields, poolsides, or busy gyms.
- Includes Storage Box and Lanyard: Comes with a protective storage box to safeguard the stopwatch when not in use and a rope lanyard for secure, hands-free carrying. This combination enhances portability and helps prevent loss or damage during travel or active use.
Technical Specifications
- Item Type: Mechanical Stopwatch
- Material: Stainless Steel
- Movement: Mechanical with 13 gemstones
- Display: Large digital screen
- Operating Temperature: -10℃ to +40℃
- Functions: Start, stop, reset, metronome
- Durability: Dust, water, and shock resistant
- Control: One-button crown operation
- Package Includes: 1 x mechanical stopwatch, 1 x storage box, 1 x rope
Benefits & Use Cases
The SXJ504 is ideal for a wide range of users who require dependable timing in dynamic settings. Sports referees can use it to track game periods, rest intervals, or penalty durations with confidence, thanks to its clear display and reliable mechanics. Fitness coaches benefit from the metronome function when guiding interval training, sprint drills, or rhythmic exercises, helping athletes maintain consistent pacing. Gymnasts and performance athletes rely on its precision to monitor routines and improve timing accuracy. Its rugged build ensures it performs well in outdoor sports, field events, or intense gym sessions. The storage box protects the unit during travel or storage, while the lanyard keeps it within reach during active use. With its combination of durability, functionality, and ease of use, the SXJ504 is a practical, long-lasting tool for anyone serious about performance and timing.
Important Notes
The SXJ504 is a mechanical stopwatch and does not require batteries. It operates through manual winding and mechanical movement, ensuring functionality without reliance on power sources. While it is designed to resist dust, water, and shocks, it is not fully waterproof and should not be submerged. Avoid exposing the unit to temperatures outside the -10℃ to +40℃ range to maintain optimal performance. Regular cleaning with a dry cloth is recommended to preserve the display and casing. The product includes one stopwatch, one storage box, and one rope—no additional accessories or tools are provided. Handle the crown gently during operation to prevent damage to the internal mechanism.








