This comprehensive service manual provides detailed technical repair information for CASIO MSG-100 Series, PRL/PRT Series, and MW-58 Series watches. The manual covers a wide range of topics, including rebuilding, maintenance, and troubleshooting procedures. It also includes a comprehensive parts list, making it an invaluable resource for watchmakers and technicians who need to repair these specific CASIO watch models.

The Casio MSG-100 Series, PRL/PRT Series, and MW-58 Series watches, released in 1998, represent a diverse range of timepieces from Casio's extensive catalog. The MSG-100 Series, known for its sporty and functional design, featured a variety of models, including the MSG-100-1V, MSG-100-2V, and MSG-100-7V. These watches offered features like stopwatch, alarm, and backlight functions, catering to users seeking practical timekeeping solutions for everyday activities. The PRL/PRT Series, on the other hand, focused on radio-controlled technology, ensuring accurate timekeeping across various time zones. The PRL-100, PRT-100, and their variants received their time signals from atomic clocks around the globe, providing precise and reliable timekeeping. Lastly, the MW-58 Series encompassed a diverse collection of watches, including digital, analog, and combination models. The MW-58-1V, MW-58-2V, and MW-58-7V, among others, offered a range of styles and functionalities, encompassing alarm, stopwatch, date, and even solar-powered models, catering to diverse user preferences. These watches, although released in 1998, have continued to hold their appeal due to their robust build quality, reliable performance, and timeless designs. Their service manual, a valuable resource for repairs and maintenance, provides detailed information about the inner workings of these watches. It covers essential aspects, including disassembling and reassembling the watch mechanisms, troubleshooting common issues, and identifying and replacing parts. The manual is a comprehensive guide for watchmakers and enthusiasts alike, offering invaluable insights into the intricacies of these Casio timepieces. The service manual, combined with the watches' durability and functionality, ensures that these Casio models remain sought after by collectors and everyday users, cementing their legacy as reliable and enduring timekeeping companions.