Thank you for viewing. This is a high-performance quartz "Perpetual Calendar" model from Seiko (SEIKO). It features a function that eliminates the need for date adjustments, including leap years, until the year 2100. The complex calendar settings after battery replacement have also been completed, so you can use it immediately. 【Maintenance Details】 Battery Replacement & Setting: Performed in January 2026. The battery has been replaced with a new one, and the leap year, month, and day settings have been set accurately. Cleaning: Alcohol disinfection performed. Exterior Polishing: Carefully polished to bring out the shine. Waterproofing: Gaskets replaced and silicone grease applied. 【Product Condition】 Operation: Operates normally. Calendar advancement is smooth. Appearance: Both the case and glass are in very clean condition with no noticeable scratches. Please check the images. Dial: Very clear and highly visible. 【Detailed Information】 Model Number: 8F32-005A Brand: Seiko (SEIKO) Functions: Perpetual calendar (automatic date adjustment), 10-bar water resistance 【Reliable Transactions & Other Information】 Authenticity Guarantee: We guarantee that this is a genuine product. If it is determined to be a counterfeit or fake, we will accept returns and provide a refund. Price Negotiation: We are open to price negotiations. Please feel free to comment. Welcome International Buyers: We welcome international buyers through proxy services such as Buyee! Thank you.