Certina military style

Bristol 230 might not seem very exciting, but this stainless steel watch its worth an inclusion on the site. The full lume, arabic numbers no date black very well preserved dial is special! It is in the older style with a sub second and baton hands, but still dates from 1970. The serial number is 8114824 and the case reference 7001 230-5. Movement caliber is 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 and has a nice amplitudes of 220 degrees plus with next to no beat error. The case has diameter 34,5mm and is slim, only 9,5mm thick.