Open box. 
Tested, works as it should. 
The GraLab 300 Darkroom Timer (GR300) is one of the most recognizable pieces of equipment in a photographic darkroom. Educational institutions, fine artists, and professional labs have relied on the GraLab 300 for decades.
Thanks to its non-fogging, glowing paint, minutes and seconds can easily be read across the room, in total darkness - making the GraLab 300 timer ideal for film processing, especially the precise timing required by color processing. The 60-minute time range can be set in minutes and seconds and is able to control an enlarger. Its two hands for setting the time are as easy and instinctive as setting a clock.