# Longines Master Collection Automatic Moonphase L2.739.4.71.6-G15A Review by A.I. WatchMetrics Overall Watch Rating: 8.5/10.0 - Brand (8.5), History & Innovation (8.0), Rarity (7.5), Material (8.0), Movement (9.0), Versatility (8.5), Complications (8.0), Functions (9.0), Dials & Design (8.5), Cohesiveness (8.0) ## Summary The Longines Master Collection Automatic Moonphase L2.739.4.71.6-G15A is a sophisticated timepiece that embodies elegance and functionality. This watch is designed for those who appreciate classic aesthetics combined with modern watchmaking technology. It features an automatic movement with a power reserve of approximately 64 hours, making it suitable for daily wear and special occasions alike. The moonphase complication adds a unique touch, appealing to enthusiasts who value horological intricacies. ### Movement Type and Power Reserve - **Movement Type**: Automatic - **Power Reserve**: Approximately 64 hours ## Metric Breakdown with Weightings - **Brand (10% Weight): 8.5/10** - Explanation: Longines is a well-respected brand with a rich history in watchmaking, known for its quality and craftsmanship. - **History & Innovation (10% Weight): 8.0/10** - Explanation: Longines has made significant contributions to horology, particularly in the development of precision timekeeping and elegant designs. - **Rarity (10% Weight): 7.5/10** - Explanation: While the Master Collection is popular, it is not as rare as some limited editions, but it still holds a certain exclusivity. - **Material (10% Weight): 8.0/10** - Explanation: The watch features high-quality stainless steel and a refined dial, showcasing the brand's commitment to using premium materials. - **Movement (10% Weight): 9.0/10** - Explanation: The L2.739.4.71.6-G15A is powered by the L899 automatic movement, known for its reliability and precision, enhancing the overall performance of the watch. - **Versatility (10% Weight): 8.5/10** - Explanation: This watch is versatile enough for both formal and casual settings, making it a great addition to any collection. - **Complications (10% Weight): 8.0/10** - Explanation: The moonphase complication is a sophisticated feature that adds to the watch's appeal, showcasing its technical prowess. - **Functions (10% Weight): 9.0/10** - Explanation: The watch includes a date function and a moonphase indicator, enhancing its practicality for everyday use. - **Dials & Design (10% Weight): 8.5/10** - Explanation: The dial is elegantly designed with a classic aesthetic, featuring a beautiful moonphase display that adds character. - **Cohesiveness (10% Weight): 8.0/10** - Explanation: The design elements of the watch work harmoniously together, reflecting Longines' commitment to timeless elegance. ## Conclusion The Longines Master Collection Automatic Moonphase L2.739.4.71.6-G15A is a remarkable watch that balances elegance with functionality. Its automatic movement, moonphase complication, and high-quality materials make it a desirable choice for collectors and enthusiasts alike. This timepiece is perfect for those who appreciate the finer details in watchmaking and seek a versatile watch that can transition seamlessly from day to night. --- *A.I. WatchMetrics Review v. v6.20*