Bristol 230 might not sound very exciting, but this stainless steel watch is worth to be appreciated. The luminous arabic numbers, no date, very well preserved black dial is special! It is in the older style with a sub second and dagger hands, but still dates from 1970. The serial number is 7767916 and the case reference 7001 230-5. The movement is the “oversize” 28 mm caliber 28.10 which beats at 19800 per hour (this caliber was also in use in the early sixties). The watch runs within +/-20 sec/day. It has not been serviced by us. You should calculate with a service if you plan to use it every day. The case has a diameter of 34,5 mm, and is slim, only 9,5 mm thick. Lug tip to lug tip it measures 40,2 mm. We have equipped it with a NOS vintage Certina strap and buckle.