Source note
Spec backfill (2026-08-08, round 7): see module docstring for a near-miss worth flagging in the docstring, not here -- lorierwatches.com's CURRENT live product page for 'Neptune' is actually Series V (sku "nep5-blk-nd-brac", $699, Miyota 9039, sapphire crystal/bezel), a different generation from this row's Series IV. Did not use that page. Instead sourced Series-IV-specific coverage: Dappered's direct SIV review (dappered.com, fetched directly) confirms stainless steel case (brushed with polished edges), domed Hesalite crystal, 200m WR with screw-down crown, flat-link stainless steel bracelet (20mm tapering to 16mm at clasp), Miyota automatic movement, $499 price (close to the $500 already on file, no conflict). bestwatchfor.com's SIV-specific coverage independently confirms 316L stainless steel case, black dial with gilt accents ("gilt on black is what sells this watch in person"), domed Hesalite crystal ("Lorier includes a tube of Polywatch in every box because they know Hesalite scratches"), and Miyota 90S5 movement specifically (a different, slimmer caliber than Series V's 9039). Earlier general aggregate searches (WatchUSeek/RolexForums SIV threads, an eBay SIV listing) also agree black/gilt is the only dial option for the no-date SIV. Deliberately left bezel_type, case_thickness_mm, lug_to_lug_mm, lug_width_mm, caliber, power_reserve NULL -- some numbers were found for these but not cleanly attributable to Series IV specifically (risk of blending in Series V figures), and this row's diameter_mm/lug_width_mm are already non-NULL on file so not re-touched anyway. As expected for a small microbrand's now-superseded generation, coverage is thin. Unresolved: case_thickness_mm, lug_to_lug_mm, bezel_type, caliber, power_reserve_hours, jewel_count, complications, strap_material, clasp_type, year_introduced, year_discontinued, watch_type.