Editorial
The Conquest Classic 40mm is Longines' attempt to split the difference between sport and dress: 100m water resistance and a screw-back case on a dial dressed up with applied indices and a mix of brushed and polished surfaces. The L2.786.4.56.6 specifically gives you a silver dial, steel bracelet, and the L888.4 movement in a package that wears well at a desk and holds up on a weekend. For collectors who want a single everyday automatic under $1,500 without giving up finishing quality, this reference is a reasonable answer.
Longines introduced the Conquest Classic line in 2009 to distinguish a more refined segment from the original tool-sport Conquest, adding polished case flanks and dressier dial treatments while keeping practical water resistance. The 40mm steel variants settled into the current generation around 2018 to 2020, with this specific reference entering production in 2020. The L888.4 is an ETA 2892-A2 base with Longines finishing and regulation, a movement that has powered this line through multiple case generations.
Dial variants across the Classic range include silver, black, and sunray-finish options; the silver dial references are the most produced and most commonly found pre-owned. No major caliber changes have occurred since the current generation launched.
Confirm the bracelet clasp shows no play and that the deployant locks cleanly; Conquest Classic bracelets see fatigue in the fold-over clasp after several years of daily wear and replacements add cost. Inspect the polished case flanks for sanding or over-polishing by a previous owner, since amateur refinishing flattens the intentional contrast between brushed and polished surfaces and is hard to reverse well. Check that the date magnification on the cyclops lens is centered and unmarked; minor chips or crazing are not always caught in seller photos.
The screw-down caseback should show no tool marks, which would indicate a movement service or battery swap attempt by someone unfamiliar with this case style. Verify the movement runs within COSC-adjacent tolerance if the seller advertises it as regulated; the L888.4 is capable of better than +/-10 sec/day but not all examples ship that way.