The Agilis by Berthet is based on a classic hand-wound movement that is modified in-house to create the retrograde minutes display at the top of the dial. Berthet perform an operation similar to that performed by Vincent Calabrese with his company Nouvelle Horlogerie Calabrese: they use standard ETA/Unitas movements and modify them to do something new. The complication was designed by house engineers Gérard and William Berthet.
Classic case design
Agilis is 43 mm in diameter and just under 12 mm thick, with an attractive case featuring a fluted caseband and a crown finished with a cabochon in sapphire or ruby. The watchglass is in sapphire, the display caseback in mineral glass. Water resistance is 5 atm, resistant to splashes and rain. The dial provides an alternative view of time: you can see the time roughly from the hour hand, and then if necessary you can read the exact time in minutes on the retrograde scale, which compresses an hour into 120° of arc. The minute hand jumps back to zero at the top of the minute. The small seconds subdial at 6 o’clock shows you that the watch is running.
The movement, based on (I would guess) the ETA Unitas 6498-2, runs at 21,600 vibrations per hour, 3 Hertz, and provides a power reserve of 48/50 hours. It is finished with Côtes de Genève decoration and blued screws.
Agilis price and reference
Agilis, reference H43RETRO, by Berthet is available in several versions, with black or white dial, and case in steel, or with black DLC coating, or with a 5N pink gold coating or a 2N yellow gold coating. It costs €1,650. Read more on the Berthet website.