dbane883 Posted February 10, 2017 Report Share Posted February 10, 2017 Hey guys. Thought I'd drop in to say hello. Also wanted to share some analysis of 20mm spring bars I've "discovered". For the past couple of years, I've sworn by ST (Startime) spring bars. Unlike most rep and aftermarket bars, the springs don't crumple, the ends are nicely rounded, and they are made in Switzerland. They really are terrific. But I have an account at a part supply company called Beco-technic in Germany. I've ordered stuff from them a few times, but never thought of trying their spring bars until my most recent order. To my surprise, they are superior to ST bars and I suspect genuine Rolex bars are made by the same factory. Side by side, the ST bars are nearly identical to the Beco-Technic (BT) bars. The ST bar ends are rounded, and the BT bar ends are conically tapered: Now here is a comparison of the BT bars (on the left) and gen bars (on the right). Both ends are conical: Keep in mind, that these observations are based on a random and very small sample size and no two spring bars are identical . Now here is a shot of all three together (ST on left, BT in middle, Gen on right: Conical or rounded, I don't think anyone will care. But a more important contrast is the strength of the internal springs. I've always found the ST springs are "noisy" when compressed. The BT and gen are much quieter. Further here is some VERY unscientific measurements of the force required for full compression (using a kitchen scale). The gen bars, are not new, but measured 506 grams on the scale; equivalent to 4.96 Newtons (if my math is correct. I have a Physics degree but I don't remember jack [censored]): The brand new BT bars measured a whopping 580 grams (5.68 N): And finally, brand new ST bars averaged 380 g (3.72 N): Had the gen bars been brand new, I imagine the springs would be slightly stronger. At any rate, I think my go-to bars from now on will definitely be the Beco bars. If you try to order from them, keep in mind you will need to be approved. Also, I had a lot of trouble accessing their website recently (www.beco-technic.com). I'm in Canada and could not load the page for unknown reasons. So I changed my IP address to Germany and it worked fine. Odd. Frankly, I think 20mm ST bars (or equivalent) are just superb for any watch that accepts them. But the BT's are as close as I have ever seen to what you would get from RSC. 6 Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 10, 2017 Report Share Posted February 10, 2017 Thanks for this interesting topic.What a pity that BT did not accept my order a few weeks ago. I will try again. Link to comment Share on other sites More sharing options...
sputim Posted February 10, 2017 Report Share Posted February 10, 2017 Thanks that is certainly helpful! They look amazing Link to comment Share on other sites More sharing options...
Champagnesky Posted February 10, 2017 Report Share Posted February 10, 2017 Thx for the info! Will order a couple asap!Skickat från min iPhone med Tapatalk Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 10, 2017 Report Share Posted February 10, 2017 Thx for the info! Will order a couple asap!Skickat från min iPhone med TapatalkLucky you if they accept your order. They refuse to sell me Link to comment Share on other sites More sharing options...
Champagnesky Posted February 10, 2017 Report Share Posted February 10, 2017 Lucky you if they accept your order. They refuse to sell me What was the reason?Skickat från min iPhone med Tapatalk Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 10, 2017 Report Share Posted February 10, 2017 What was the reason?Skickat från min iPhone med Tapatalk"We only sell to the industry" Link to comment Share on other sites More sharing options...
Champagnesky Posted February 10, 2017 Report Share Posted February 10, 2017 Haha ze germans. Well We are part of an industry, arent we? Skickat från min iPhone med Tapatalk Link to comment Share on other sites More sharing options...
sputim Posted February 10, 2017 Report Share Posted February 10, 2017 I ll try to order guys there should be a way to arrange this keep you posted and if it works I can order a latge quantity for all who are interestedSent from my iPhone using Tapatalk 1 Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 10, 2017 Report Share Posted February 10, 2017 http://www.beco-technic.com/ersatzteile-werke/ersatzteile-fuer-armbanduhren/federstege/sonderformen/federstege-rohr-laenge-20-00-mm-o-2-00-mm-zapfen-laenge-2-80-mm-o-1-20-mm.html I tried to restart them, I wait for the answer. Link to comment Share on other sites More sharing options...
Sogeha Posted February 10, 2017 Report Share Posted February 10, 2017 13 minutes ago, sputim said: I ll try to order guys there should be a way to arrange this keep you posted and if it works I can order a latge quantity for all who are interested Sent from my iPhone using Tapatalk Good man. If it works out I'm interested in taking some please Link to comment Share on other sites More sharing options...
Revere Posted February 10, 2017 Report Share Posted February 10, 2017 A physics degree! I'm studying for the same. Diligent research as always. Link to comment Share on other sites More sharing options...
hunvaakaren Posted February 10, 2017 Report Share Posted February 10, 2017 Nice. Do you have direct link to the springbars? Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 10, 2017 Report Share Posted February 10, 2017 Nice. Do you have direct link to the springbars? Upper Link to comment Share on other sites More sharing options...
hunvaakaren Posted February 10, 2017 Report Share Posted February 10, 2017 UpperThanks, Bart. Link to comment Share on other sites More sharing options...
jigelow Posted February 10, 2017 Report Share Posted February 10, 2017 If anyone gets in on this I'm in for a few pairs. Link to comment Share on other sites More sharing options...
capre Posted February 10, 2017 Report Share Posted February 10, 2017 Interesting topic. Im definitely in for a few if someone gets through Link to comment Share on other sites More sharing options...
steve3sc Posted February 10, 2017 Report Share Posted February 10, 2017 Yes, please. Add me to the list if anyone gets approval to buy. I'm good for 5 or 6 pairs. Link to comment Share on other sites More sharing options...
Sub007 Posted February 12, 2017 Report Share Posted February 12, 2017 Same here, sign me up.Verzonden vanaf mijn iPhone met Tapatalk Link to comment Share on other sites More sharing options...
ww12345 Posted February 12, 2017 Report Share Posted February 12, 2017 Same!Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
RickFlorida Posted February 13, 2017 Report Share Posted February 13, 2017 The mere fact that whoever gets to order from them first is going to be ordering 2 dozen or more should prove that "we are in the industry". That's probably how they will accept someone is if they order so many. I make jewelry as a hobby, and from what I've learned is that some of the jewelry supply companies have to fill out a lot of paperwork because some people launder money by turning in scrap gold. But of course, other jewelry supply companies are simply not selling to the public for normal reasons. Link to comment Share on other sites More sharing options...
Champagnesky Posted February 13, 2017 Report Share Posted February 13, 2017 On 10/02/2017 at 0:08 PM, Bart Cordell said: Lucky you if they accept your order. They refuse to sell me Got an account, will order tomorrow. 1 Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 13, 2017 Report Share Posted February 13, 2017 @ChampagneskyNice !I tried again and they still refuse with the same argument, "we only sell to industries". Link to comment Share on other sites More sharing options...
Champagnesky Posted February 13, 2017 Report Share Posted February 13, 2017 2 minutes ago, Bart Cordell said: @Champagnesky Nice ! I tried again and they still refuse with the same argument, "we only sell to industries". I will PM you when I get them. Link to comment Share on other sites More sharing options...
Bart Cordell Posted February 13, 2017 Report Share Posted February 13, 2017 @champagnesky Link to comment Share on other sites More sharing options...
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