Source note
Merged 2026-08-06 -- this row (from the original researched-batch import) and a newly-added row for the same reference were duplicates; kept this one, carried over the newer research. MSRP corrected $1,950 -> $2,400 (the original had no source_note, unclear where $1,950 came from; $2,400 is cross-verified against Longines' own site + 2 other sources). Case dims cross-verified across Longines official + WIS Straps + Lug to Lug Finder. Unresolved: jewel_count, bezel_type, dial_color detail, complications, year_introduced (2024, not precisely dated), clasp_type.
Spec backfill (2026-08-08, round 7): longines.com's own product page for this exact reference is titled "CONQUEST | O 38.00 mm, Sunray Black | L3.720.4.52.6 | LONGINES US" (a direct fetch attempt timed out, same as round 5/6's experience with this site -- used the page's own indexed title/metadata as the manufacturer source, per that precedent), cross-checked against WatchMaxx's detailed product description ("Brushed and Polished Stainless Steel case ... Black Sunray dial ... Smooth bezel ... triple safety folding clasp with push-piece opening ... Scratch Resistant Sapphire crystal") and Jomashop/Little Treasury/PrestigeTime listings, all agreeing. dial_color set to "Black (sunray)" to match the phrasing already used for the sibling id=26 row's dial_color. jewel_count=21 is the L888 caliber's standard published spec (calibercorner.com), same figure round 5 used for this reference's siblings id=20/id=23 -- not independently re-confirmed for this exact ref, but a well-established off-the-shelf figure for this caliber. complications= 'date' matches what's already implied by the case_thickness/lug data on file and WatchMaxx's own dial description ("the Date at 6 o'clock"). case_thickness_mm (10.9mm, already on file) matches WatchMaxx's stated 10.90mm exactly -- no conflict, left untouched. Unresolved: year_introduced (2024 per a prior note, not precisely dated), watch_type.