Roamer Stingray S divers watch

A Roamer Stingray S divers watch from the mid 1970’s.
Roamer has been making watches in Switzerland for over 125 years. They been known for some excellent products including a 44 jeweled movement used during the 1970’s and high quality Chronographs.
The Roamer Stingray S was also a  very well known model from the same period that Roamer was most popular. This watch features a in-house MST 471 movement that has just been serviced by my watchmaker. The watch features a heavy steel double case configuration. The added heft and ultra thick crystal allowed the Stingray S to be certified for waterproofing down to 660 feet or 200 meters.
The large signed crown on the side does not wind the movement but instead turns the inner rotating bezel. The bezel is graduated with red numerals.
The black dial uses white luminous stick markers to illustrate the hours. An orange painted minute hand and yellow seconds hand circulate the dial and add a great splash of colour.
The back of the watch has a numerical engraving on it from the previous owner. Not sure what it is but it stands as part of the history of the watch. The caseback also provides just about all the info on this watch. The 471 on the back refers to the 28 jewel calibre 471 powering the watch. The 9120 referred to the revised steel composition formulated to provide additional resistance to corrosion. 605 was the case reference number.
As this was one of the last versions of the watch, the lugs were redesigned to facilitate taking 200 mm straps or bracelets instead of the earlier 18 mm sizing. I have fitted a yellow silicone rubber dive strap to the watch to add a slash of colour. The watch measures 38 mm wide by 42 mm long.
Roamer is still using the Stingray name on a modern re-edition of the Stingray Chronograph which has many of the same styling cues used on this watch. Visiting the Roamer site I found this link to old television ads that actually featured this watch. Vintage Roamer tv ads