[About the Product] This is an Omega Seamaster Calendar. Introduced in the 1950s, this model (Ref. 2627-4SC) is known as a historic series that marked Omega’s first watch to feature a date function. While many watches of that era placed the date at the 3 o’clock position, a key feature of this model is that the calendar window is positioned at the 6 o’clock position, which provides excellent balance to the dial. Half-rotor (bumper): This mechanism winds the watch by having the rotor bounce back after striking a spring, rather than rotating a full 360 degrees. It produces a distinctive sensation (a slight “thud”) when in operation. Why not take this opportunity to acquire a valuable timepiece? We offer high-quality vintage watches. [Appearance] ・Minor scratches overall ・Non-original strap *The second hand is red. It is likely not the original. Please examine the images carefully before making your decision. [Function] ・Operates normally. *Regarding the accuracy of the automatic movement, we do not measure the daily deviation with a machine. While there are no significant errors, please be aware of this in advance. *As this is a vintage watch, water resistance is not guaranteed. 【About the Product Description】 The product description is based on our subjective assessment. It is often difficult to describe the condition of vintage items in words. We will upload as many photos as possible of any points of concern regarding the item, so please check those. 【Important Information】 ・Import duties, taxes, and fees are the responsibility of the buyer. Please check with your country’s customs office regarding these additional costs before bidding. ・Please allow approximately 1 to 2 weeks from shipment until delivery.