Sellita, calibre SW510 M a
Winding: manual-wind
Frequency - Variations per hour: 4Hz - 28800 V/h
Power Reserve: 63 hours
Accuracy: -7/+7 seconds / day
Jewels: 23
Service every 6–8years
Calibre Sellita SW510 M a
Swiss made
Thickness: 7
central hr
central min
small sec at 9
date at 4
Chronograph: 60s counter in center, 30m counter at 3 , 12h counter at 6
Reliability: High
