【Brand】 Grand Seiko 【Model Number】 4520-7010 Grand Seiko 【Manufacture】 September 1970, Kameido-made 【Movement】 High-beat 36000 (10 vibrations), manual winding, no date, hacking function 【Belt】 Third-party product (Please consider it as a bonus.) 【Buckle】 D-buckle (Third-party product, please consider it as a bonus) 【Product Condition】 【Glass Windshield】 No scratches visible, it's beautiful. 【Mechanism】 Good. Please check the photos. 【Dial】 Good. Please check the photos. 【Case】 Good. Please check the photos. 【Back】 The medallion is in beautiful condition. 【Functions】 ・The hacking function (seconds hand stops when setting the time) works perfectly. 【Remarks】 ・It is running smoothly without major deviations. If you are seeking higher accuracy, please have it overhauled. I purchased this previously and have been using it with affection, but I am selling it to organize my collection because I am considering purchasing a watch that is the same 45GS. The following is a reprint of the product description from the previous purchase, so please refer to it. 【Product Description】 ○ I am selling it to organize my collection. ○ This is the 45GS, the culmination of Grand Seiko's vintage manual winding models, as everyone knows. It is equipped with an excellent mechanism that was entered in the observatory competition where SEIKO competed with Swiss watches, and is the base for the Observatory V.F.A. ○ This is a rare C-line model of the 45GS, which has been reissued in recent years and has increased in price. The Zaratsu polishing remains intact, and the medallion is in beautiful condition, which is considered quite rare. ○ It is the final and comprehensive model of vintage Grand Seiko manual winding models, featuring high-beat (10 vibrations), manual winding, and the C-line that symbolizes the era, all of which have been cultivated in successive models. ○ The number of watches in good condition has been decreasing in recent years, and vintage GS is also popular overseas, so it is expected to increase in value in the future. Please consider this opportunity. ・Due to the nature of vintage watches, the operation, accuracy, and any malfunctions after arrival cannot be guaranteed, so please understand this before purchasing. ・To prevent any trouble, please be sure to ask any questions or concerns in the comments before purchasing. I will answer to the best of my ability. Your purchase will be considered as an agreement to the condition, and no claims or returns will be accepted.