This is a Longines Conquest V.H.P. GMT Quartz Perpetual Calendar stainless steel watch, model L3.718.4, for men. A key feature of this watch is its flash setting function. This allows you to set two time zones using a smartphone app and a flash. The sensor is located above the 1 at the 12 o'clock position. An image is included in the 10th photo. For detailed setup instructions, please search on YouTube for "Longines User Guide - Conquest V.H.P. : GMT Settings". V.H.P. stands for Very High Precision, indicating its exceptional accuracy. It boasts an annual accuracy of ±5 seconds. While there are minor scratches overall, they are not very noticeable. The sapphire crystal glass is scratch-free. The dial color is white and clean. The watch is functioning correctly. Width: Approximately 41mm (excluding the crown), Thickness: Approximately 13mm, Weight: Approximately 150g Wrist size: Currently about 17cm. There are 3 spare links (and 3 pins), allowing for an extension of approximately 3cm. Accessories: Box, warranty card, booklet, spare links Retail price: ¥214,500 (including tax)