SASEY Mechanical Stopwatch – 60 Seconds / 30 Minutes
The SASEY Mechanical Stopwatch – 60 Seconds / 30 Minutes is a precision mechanical timing instrument designed for measuring elapsed time in laboratory experiments, educational activities, sports, industrial testing, research, and other applications where reliable manual timing is required. Manufactured under the SASEY brand, this traditional analog stopwatch features a clear circular dial, mechanical operation, and a durable metal-style body that makes it suitable for repeated timing applications.
This type of SASEY mechanical stopwatch is available in the 60-second / 30-minute configuration, commonly associated with the SASEY 505 model. The main outer scale is used for seconds, while the smaller inner dial records elapsed minutes. Product references identify the SASEY 505 as a mechanical stopwatch with a 60-second dial and 30-minute timing capacity.
What is a SASEY Mechanical Stopwatch?
A mechanical stopwatch is a manually operated timing device used to measure the duration of an event. Unlike a digital stopwatch, it operates through a mechanical movement rather than relying on an electronic display or battery.
The SASEY mechanical stopwatch uses an analog pointer system that allows the user to observe elapsed time directly from the dial. The outer scale is graduated in seconds, while the inner sub-dial provides additional elapsed-time information. This makes it particularly useful for practical experiments, demonstrations, sports timing, industrial procedures, and laboratory work.
The SASEY brand also offers several mechanical stopwatch configurations, including models with 30-second and 60-second main dials, as well as versions with and without interruption/pause functions.
Key Features of SASEY Mechanical Stopwatch
- Brand: SASEY
- Mechanical, manually operated stopwatch
- 60-second main timing scale
- 30-minute elapsed-time range for the 505 configuration
- Clear and easy-to-read analog dial
- Traditional mechanical movement
- Metal-style durable housing
- Suitable for repeated timing applications
- Does not require a digital display or battery for normal mechanical operation
- Useful for laboratory, educational, sports, and industrial applications
- Compact handheld design with a top ring for convenient holding
Clear Analog Dial
One of the main advantages of this SASEY stopwatch is its clearly marked analog dial. The large outer scale allows users to observe seconds quickly, while the smaller inner dial provides minute measurements.
The dial uses contrasting black and red markings to make different time scales easier to distinguish. The large pointer arrangement also allows users to monitor elapsed time visually without depending on an electronic LCD display.
Mechanical Operation
The mechanical construction makes this stopwatch useful in situations where a simple, battery-free timing instrument is preferred. Mechanical stopwatches are commonly used for educational experiments, sports training, physical measurements, and various timing procedures.
The SASEY 505 configuration is listed as a 60-second / 30-minute mechanical stopwatch without an interruption function, distinguishing it from the 806 model, which provides an interruption/pause function.
Applications
The SASEY Mechanical Stopwatch – 60 Seconds / 30 Minutes can be used in a wide range of applications, including:
- Laboratory experiments
- Physics experiments
- Chemistry laboratory work
- Educational demonstrations
- Research and development
- Sports training and timing
- Athletics and physical education
- Industrial process timing
- Production and quality-control procedures
- Reaction-time measurements
- Field experiments
- Engineering experiments
- Classroom practical work
For laboratory applications, a stopwatch can be used to measure reaction times, heating or cooling intervals, flow durations, experimental processes, and other procedures where elapsed time needs to be recorded.

Suitable for Educational and Laboratory Use
Mechanical stopwatches are particularly useful in educational environments because they allow students to understand time measurement using a traditional analog instrument. They can be incorporated into physics, chemistry, biology, engineering, and general science practicals.
The clear dial also makes the instrument suitable for classroom demonstrations where students need to observe elapsed time directly.
How to Use the Stopwatch
Before timing an activity, ensure that the stopwatch is properly wound according to the manufacturer’s operating instructions.
Start the stopwatch using the operating crown/button and begin the experiment or activity at the same time. Observe the large outer scale for seconds and the inner scale for elapsed minutes. At the end of the measurement, stop the stopwatch and record the displayed time.
For accurate comparative measurements, the same operating procedure should be used consistently throughout an experiment.
Important Handling Instructions
As this is a mechanical precision timing instrument, it should be handled carefully. Avoid dropping or strongly impacting the stopwatch. Keep the instrument away from excessive moisture, dust, and corrosive environments.
Do not force the winding or operating mechanism beyond its intended movement. For laboratory or professional applications requiring certified timing accuracy, the stopwatch should be checked or calibrated according to the applicable requirements.
Why Choose SASEY Mechanical Stopwatch?
The SASEY Mechanical Stopwatch – 60 Seconds / 30 Minutes combines a traditional mechanical mechanism with a clear analog display and practical handheld design. Its 60-second main dial and 30-minute timing configuration make it suitable for a wide variety of educational, laboratory, sports, and industrial timing applications.
For users who prefer a traditional mechanical stopwatch rather than a battery-powered digital timer, this SASEY model provides a practical and easy-to-use timing solution.
Frequently Asked Questions (FAQ)
1. What is a SASEY Mechanical Stopwatch?
A SASEY Mechanical Stopwatch is a manually operated analog timing instrument designed to measure elapsed time accurately for laboratory, educational, sports, and industrial applications.
2. What is the timing range of this SASEY stopwatch?
The SASEY 505 configuration is commonly specified with a 60-second main dial and 30-minute timing capacity.
3. Does this stopwatch require a battery?
No. It is a mechanical stopwatch and operates through a mechanical movement rather than an electronic battery-powered display.
4. What is the SASEY 505 used for?
It can be used for laboratory experiments, educational practicals, sports training, industrial timing, research, and other activities requiring elapsed-time measurement.
5. Is this stopwatch suitable for laboratory experiments?
Yes. Mechanical stopwatches are commonly used for measuring experimental durations and time intervals in educational and laboratory environments.
6. Can it be used for sports timing?
Yes. SASEY mechanical stopwatch models are also marketed for sports and athletic timing applications.
7. What is the difference between SASEY 505 and 806?
The SASEY 505 is listed as a 60-second/30-minute model without an interruption function, while the SASEY 806 is a 60-second model with an interruption/pause function.
8. How should the stopwatch be maintained?
Keep it clean and dry, avoid impacts, and operate the mechanical mechanism according to the manufacturer’s instructions.
9. Is it suitable for classroom use?
Yes. Its analog dial makes it useful for science practicals, physics experiments, demonstrations, and teaching time-measurement concepts.
10. What is the brand of this stopwatch?
The stopwatch shown in the image is branded SASEY, a Shanghai-based manufacturer of mechanical and electronic timing instruments. The SASEY documentation identifies its mechanical stopwatch product line.











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