1960’s HELBROS (Swiss) Ref. 14510 Vintage Chronograph Watch – Valjoux Cal. 7730


1 in stock

Professionally restored and fully serviced in-house here at the Localtime Spa, a HELBROS Ref. 14510 chronograph with a LeJour marked Valjoux Cal. 7730 movement and case (large 36.25mm case, 38.25mm counting the crown at 3h), from the late 1960’s.

These were made by YEMA (France) for many brands in the USA and we also see some of them with Yema-branded movements/cases. Beautiful silver dial with applied silver indices and stunning ‘alpha-typex’ hands. We have included many photos, including some macro closeup snapshots we took, just for fun, as well as, some snapshots from the service bench. This lovely chronograph is fitted with a handmade premium calf leather strap in tan, custom made for Localtime in Italy (more information on these just below).

As with all the watches we handle inhouse, the listed buy-it-now price includes a 6-month written warranty from the time of purchase. Do not hesitate to contact us for any further information you might need.

Information about the Localtime straps: Handmade in Italy from premium calf leather and to our own specifications, they come in 5 sizes (lug width/buckle width): 18/16, 19/16, 20/16, 21/18 and 22/18mm & 11 colours. We sell these separately in our store and you can also see them in the last photo here.

Important Note: Sometimes I am asked what I exactly mean with ‘professionally inspected by Localtime’. Here is my theory on vintage watches: as a purveyor of vintage watches, my effort is to always do only what is needed to the watch. I do not buy ‘junk’ watches to resell. I am choosy with my purchases and always sell watches that are, to my knowledge, authentic and in good condition. I first inspect the watch, both visually (cosmetically) and then mechanically. If I judge that the watch is not yet in need of a full service then I do not put the watch through a service which, by the way, entails a lot of risks too. Instead, I give it what I call my ‘Spa’ treatment which will include a cleaning, changing of gaskets, oiling, lubricating and mechanical testing. If the plexi is heavily scratched or discoloured and it can not be cleaned, I change it. If the crown is wrong or worn, I also change it. Now, if the watch is in need of a full service, then my ‘professionally inspected’ description becomes ‘professionally serviced’. In both cases, I mention what has been changed (if anything) on the watch and I include a written warranty with my listed price.

Important Note On Straps/Bracelets: The straps I use on my watches (leather, canvas, suede, rubber) are always brand new, unless otherwise mentioned and, in most cases, I also sell them separately in my store, in different colours and sizes. In the case of metal bracelets, if the watch is NOS, the bracelet is also unused. If the watch is pre-owned with its original bracelet, then the bracelet is also pre-owned, unless otherwise mentioned. Either way, if in doubt, please ask.



Production Period



Ref. 14510 Chronograph


Time, Chronograph, Telemeter, Tachymeter




Valjoux Cal. 7730

Case Material


Case Back

Stainless Steel

Case Size

36.25mm case, 38.25mm including centre crown

Lug Width



Pre-Owned & Working With Warranty

Last Known Service

Serviced by Localtime – March 2021


Free Worldwide


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