| Part number | Type | A/C P/N | NSN | Description | Comments | Image |
| 4000-1002 | 206-070-275-005 | Mechanical 8-day 2 inch | 8-day/12 hour mechanical unit, with 5 volt bezel lighting (blue/white) | |||
| 4010-1010 | Mechanical 8-day 2 inch | Mechanical 8-day unit, features include elapsed time |