Longines puts the power reserve at the heart of the Conquest Heritage

The Conquest Heritage Central Power Reserve looks like a quietly elegant vintage-inspired watch until attention turns to the centre of its dial. Rather than moving a conventional needle over a small subdial, Longines uses two rotating discs to display the energy remaining in the mainspring. The mechanism references an inventive Conquest from 1959, bringing an unusual historical solution back into regular production.

This ice-blue edition uses a 38mm steel case and an opaline dial, finished with applied rhodium-coloured hour markers and a neatly framed date window. The central rotating display adds subtle movement without upsetting the design's balance. It is offered with a grey alligator strap or steel bracelet, in a package that feels equally suited to modern tailoring and casual use.

The automatic L896.5 calibre beats at 25,200 vibrations per hour, uses a silicon balance spring and provides up to 72 hours of power reserve. Longines lists the watch with sapphire crystal and 50-metre water resistance. The cleverness here is making a mechanical watch's stored energy part of its main visual language, rather than an afterthought hidden at the edge.