- Date display
- Accuracy: ±20 seconds per month
- Approx. battery life: 10 years on CR2012
- Size of case / total weight
EF-106D..................... 43.0 x 37.0 x 10.4 mm / 105 g
EF-107D..................... 42.6 x 36.0 x 10.1 mm / 98 g
EF-109D..................... 48.4 x 39.0 x 10.4 mm / 111 g
EF-111....................... 50.1 x 40.0 x 9.7 mm / 60 g