Are there standard dimensions for mb-microtec trigalight^® used on watches?
Yes, we manufacture a range of mb-microtec ag trigalight with standard dimensions for use on faces, hands and bezels of timepieces. (See appendix “Standard mb-microtec ag trigalight for watches” which indicates the dimensions, colours and activity of each standard light). Drawings of the standard lights are available on request. If none of these standard lights conforms to your requirements, we shall gladly manufacture lights to your individual specifications. see on top

Are the standard trigalight^® also available in other colours?
The T 6040-1, T 6041-1, T 6042-1 and T 6043-1 lights are available in green, orange, yellow and ice-blue. The lights with a diameter of 0,5 mm (T 6044-1, T 6080-1, T 6081-1, T 6082-1 and T 5648-1) are not available in orange.

How are mb-microtec ag trigalight^® installed?
There are three different alternatives for installing mb-microtec ag trigalight on hands and faces:

• The lights are installed on the hands and face using an elastic adhesive (silicone).
• The lights are placed in a ring with the necessary openings for the light to escape.
• The lights can be laid in a cut-out (with the corresponding dimension) in hands and faces
   using a special adhesive foil, secured on the reverse side of these parts.

Does mb-microtec ag offer hands and faces equipped with mb-microtec ag trigalight^®?
mb-microtec ag has extensive experience in the fitting of trigalight on hands and faces and we shall gladly offer you this service.


Can mb-microtec ag trigalight^® be fitted into all watches?
A particular hand height is required to ensure perfect rotation of the hands. (Hand height no. 6). We recommend not fitting trigalight retrospectively into a finished watch.

Can trigalight^® be fitted in or on a bezel (elapsed time ring)?
Yes, trigalight which are to be installed into the rotating ring must be protected against mechanical damage. mb-microtec ag has developed various trigalight inserts for this purpose. The trigalight inserts consist of a metal case and a sapphire window through which light is visible. The installation of the insert is carried out via simple placing of the insert into the corresponding gluefilled opening on the bezel.

What is the weight of a standard light source?

T 6042-1 (light for hour hand)	1,50 mg
T 6043-1 (light for minute hand)	2,50 mg
T 6044-1 (light for second hand)	0,42 mg
T 6081-1 (light for hour hand)	0,55 mg
T 6082-1 (light for minute hand)	1,12 mg

Do watches with mb-microtec ag trigalight^® require special markings?
Yes, the marking “T” for tritium is required on the face. mb-microtec ag reserves the right to insist on certain identification marks on the back of the watch.

Are there other statutory requirements?
In most countries, handling, import, export, storing, processing of trigalight sources and products so equipped, is subject to special regulations and engaging in such activities may require a special permit. In some countries, the marketing of trigalight equipped watches also requires licensing. Normally, such permits are easily obtained as long as the total activity of a watch does not exceed 25 mCi or 0,925 GBq. Nevertheless, there are exceptions. We recommend that you contact the responsible authorities in your country in order to obtain clarification of all requirements.

Responsible authorities

download FAQ watches as PDF