Seiko Perpetual Calendar – High Accuracy Quartz – Ref. 8F56-0021 A truly exceptional Seiko timepiece that showcases the very best of Japanese quartz engineering. This watch is powered by the legendary Seiko 8F56 High Accuracy Quartz movement, widely regarded as one of the finest quartz calibres ever produced. What sets this watch apart is its true perpetual calendar, intelligently designed to automatically adjust for different month lengths and leap years — requiring no manual date correction until the year 2100. Combined with the practical GMT function, this watch offers both technical sophistication and everyday usability. The elegant 40 mm stainless steel case, paired with a scratch-resistant sapphire crystal, gives the watch a refined yet robust presence on the wrist. The crisp white dial, accented by beautifully applied markers, offers excellent legibility and a timeless, versatile design suitable for any occasion. Highlights: • Renowned Seiko 8F56 High Accuracy Quartz movement (approx. ±10 seconds per year) • True perpetual calendar • GMT function • Sapphire crystal • Stainless steel case and bracelet • Case diameter: 40 mm (without crown) • Bracelet length: approx. 18–20 cm The watch is in very good, carefully preserved condition, showing only minimal signs of wear consistent with light use. All functions operate perfectly. It is supplied with an original Seiko box. Please study the photos carefully, as they form part of the description. This is a fantastic opportunity to acquire a high-end Seiko quartz watch that combines precision, reliability and understated elegance — a model that is increasingly appreciated by knowledgeable collectors and enthusiasts.