The Wincom Stop Watch 504 is a classic, high-precision mechanical stopwatch designed for accurate time measurement in laboratory experiments, athletic training, and industrial timing. Encased in a rugged, chrome-plated metal housing, this traditional wind-up stopwatch operates entirely without batteries or electronic circuits. Featuring a dual-dial display with a single-button crown control for start, stop, and reset functions, the model 504 delivers absolute reliability, distinct tactile feedback, and lifelong durability under rigorous everyday testing conditions.

Technical Specifications

• Model Number: 504

• Mechanism Type: Mechanical Wind-Up (13 Jewels premium movement)

• Time Interval / Resolution: 1/10th of a second precision tracking

• Main Dial Configuration: 60 seconds per revolution with bold 0.1-second graduation marks

• Sub-Dial Configuration: 30-minute accumulator register for extended time tracking

• Control Interface: Single crown button for sequential Start, Stop, and Return-to-Zero operations

• Chassis Material: Heavy-duty, corrosion-resistant polished steel with a chrome finish

• Running Time: Up to 6 hours of continuous mechanical operation on a full spring wind

• Crystal Material: High-transparency, shatter-resistant acrylic viewing lens

Key Features

• 100% Battery-Free Mechanical Core: Powered completely by a premium wound spring mechanism, eliminating the risks of dead batteries, electronic glitches, or screen fading during critical laboratory tracking.

• High-Precision 13-Jewel Movement: Built with 13 functional synthetic jewel bearings that minimize internal friction and wear, ensuring ultra-smooth needle movement and consistent calibration over years of use.

• Intuitive Single-Button Crown Control: Features a unified top crown assembly; pressing down sequentially triggers the main needle to Start, Pause, and instantly Snap-Back to zero, preventing accidental timing mix-ups.

• Double-Dial Clear Readout Layout: Designed with a large, high-contrast white face displaying a prominent 60-second sweeping pointer, paired with a smaller 30-minute logging window to keep track of prolonged cycles easily.

• Ruggedized Laboratory Build: The polished metal casing acts as a protective shield against accidental drops, impacts, and splashes, featuring an integrated top lanyard loop for secure carrying around the neck or wrist.

Primary Applications

• Physics and Chemistry Laboratories: Measuring precise time intervals for pendulum oscillations, chemical reaction rates, liquid viscosity flow times, and acceleration experiments.

• Academic Science Classrooms: Teaching students the fundamentals of manual time measurement, error margins, and classical mechanics without relying on digital smart devices.

• Industrial Quality Control & Work Studies: Tracking processing times on factory assembly lines, conducting method-time measurements (MTM), and logging manufacturing cycles.

• Sports Training and Athletics: Timing sprint tracks, swimming laps, fitness drills, and structural endurance training where independent physical logging is preferred.