Anti-Reflective

A film created by steaming the crystal to eliminate light reflection and improve legibility. Anti-reflection functions best when applied to both sides of the crystal, but because it scratches, some manufacturers prefer to have it only on the interior of the crystal. It is mainly used on synthetic sapphire crystals. Dubey & Schaldenbrand applies anti-reflection [...]

Annual Calendar

The automatic allowances for the different lengths of each month of a year in the calendar module of a watch. This type of watch usually shows the month and date, and sometimes the day of the week (like this one by Patek Philippe) and the phases of the moon. [affmage source="ebay" results="10"]Patek Philippe Annual Calendar[/affmage]

Anti-magnetic

Mechanical movements are easily influenced by the magnetic fields often found in common everyday places. This problem is generally solved by the use of anti- or nonmagnetic components in the movement. Some companies, such as Sinn, IWC, and Bell & Ross, take things a step further and encase movements in anti-magnetic cores such as the [...]