Tetracycline has been studied extensively in clinical trials, with thousands of people worldwide having been evaluated. In these studies, side effects occurring in a group of people taking the drug were documented and compared to the side effects that occurred in a similar group of people not taking the medicine.
Steel ties are utilised in nearly all sectors of the worldwide railroad systems including heavy-haul, class 1s, regional, shortlines, mining, electrified passenger lines (OHLE) and all manner of industries.
While there are watches that where made to resemble a railroad watch with less jewels, they were made as cheaper imitations for the general public. You may have noticed that there are tiny red or pink dots at various places on the bridge and pillar plate of your railroad watch.