Established in 1980, Chung's Electronic Co Ltd manufactures about 100,000 stopwatches per month in its factory in Shenzhen, mainland China. Minimum order size is 2,000 items per design and delivery takes 35 days. All three products are water-resistant. Marketing officer Luisa Kwan says quality is paramount. Other products are used for diving, and can withstand pressure of up to three atmospheres.
Battery life is usually over one year, but goes up to five years in some cases.
ABS casings and CMOS programmed chips for the timers are sourced from Taiwan and Japan. The company was awarded ISO 9002 certification in 1997 and also has Q-Mark certification. Hong Kong Everlite Co Ltd has been making alarms and gifts since 1975. The stopwatch is the company's own design. Operations manager Iris Leung says this design is very important in today's market.