Harmon Rabb
Gudomlig sporthojare
Precis, att dykringen endast går att vrida moturs är en "nymodighet" som dök upp någon gång på 70(?)-talet eller så.
Vet faktiskt inte vem som var först med att introducera detta.
Precis, att dykringen endast går att vrida moturs är en "nymodighet" som dök upp någon gång på 70(?)-talet eller så.
Vet faktiskt inte vem som var först med att introducera detta.
Jag vet inte heller svaret på det. Men det skulle kunna vara Blancpain om det som står i texten nedan stämmer.
One question that comes to mind when looking at the table above is: Why did it took Rolex until 1981 to come up with something as vital as a uni-direction bezel? The answer is quite simple: There was a patent on the uni-directional bezel since 1952 (by Blancpain for their Fifty Fathoms watch). Rolex wasn’t the only brand bothered by this patent!
källa: http://www.fratellowatches.com/rolex-submariner-history/
Sedan finns det ju även standarder att uppfylla om det ska betraktas som en riktig dykklocka - ISO 6425 divers' watches standard
https://en.wikipedia.org/wiki/Diving_watch
The presence of a unidirectional bezel with at least at every 5 minutes elapsed minute markings and a pre-select marker to mark a specific minute marking.
The presence of a time-preselecting device, for example a unidirectional rotating bezel or a digital display. Such a device shall be protected against inadvertent rotation or wrong manipulation. If it is a rotating bezel, it shall have a minute scale going up to 60 min. The markings indicating every 5 min shall be clearly indicated. The markings on the dial, if existing, shall be coordinated with those of the preselecting device and shall be clearly visible. If the preselecting device is a digital display, it shall be clearly visible.