Seiko 0634-5019 Bullhead 1975. Calibre 0634A at 32,768 Hz, 27 x 8.5. Quartz movement made in Japan. Satinised steel case obtained solid. Dimensions: 40 x 37 x 14. Case size: 40 mm excluding crown. From lug to lug: 35 mm. Lug width: 24 mm. For fans of vintage items from the Seiko brand, I have the pleasure of introducing this vintage Seiko from 1975, serial number 0634-5019, the first LCD quartz chronograph. Perfect watch, despite being almost 50 years old, the push buttons to adjust are stiff to activate. The bracelet is not original; for this reason, the price is lower than those seen on the internet. The satin finish and the glossy parts are perfect, the watch has reached today in very good condition. Made in Japan. The watch is almost 50 years old and is in working order, with perfect crystal, in very good condition. Given its age, it needs to be serviced by a watchmaker who could maybe fix the push buttons that are a little stiff. The light works. Read carefully, I do not accept complaints about this. The watch does not come with original box and papers. With its original bracelet, this watch would be worth €800, see reference sites.