Vintage Watch Case Lug Width, Crystal Seat & O-Ring Optical Caliper

Deterministic Sub-pixel parallel-line distance + Taubin algebraic circle fit with camera height parallax correction for stepped case rebates engine (.jpg, .heic, .dng, .pdf) built for Seiko, Omega, Cousins UK, Bergeon — zero-upload ephemeral Wasm RAM execution.

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