"On looking back into the past, I find that, in developing and extending my business, I have always had certain aims in mind, of course from which I never deviated. Perhaps these aims can be summarized as follows:
1.) To create watch designs suitable for both men and women.
2.) To standardize a range of movements of different sizes.
3.) To obtain so high a degree of quality, that our watches, whatever the caliber, should be recognized as “ chronometers” by the Observatories.
4.) To give current models the benefit of the results and improvements obtained with specially constructed high precision specimens.
5.) To maintain this high degree of precision by protecting the movements against the penetration of dust and impurities, the danger to which the wrist watch is particularly exposed.
This last point presented a problem which could only be resolved by protecting the movement against all outside influences. To my technical assistants, my constant refrain was, from the earliest days: “We must succeed in making a watch case so tight that our movements will be permanently guaranteed against damage caused by dust, perspiration, water, heat and cold. Only then will the perfect accuracy of the Rolex watch be secured."