CR Factory (AF) Longines Master Collection 2892 Movement Disassembly Analysis

Achieving the 9.2 millimeter case thinness in the classic dress-watch category has forced factories to perfectly copy the thin architecture of the ETA 2892 caliber. In the mechanism disassembly analysis of the Longines Master Collection model developed by the CR Factory (AF) workshop; The tolerance of the gears, the Côtes de Genève decorations and the chronometric stability of the balance wheel are displayed in all their technical nakedness.

1. CR Factory (AF) Longines Master 38.5mm Case Overview

The Longines Master Collection 38.5mm classic model, produced by CR Factory (AF), with its compact dress case proportions and mirror-polished stainless steel surfaces, was subjected to detailed disassembly testing on our workshop table. The case thickness is 9.2mm, which is exactly the same as the original reference.

2. Traditional Barley Pattern Dial and Heat Treated Blue Hands

The black Arabic numerals on the silvery-white barley pattern dial are embossed with high-resolution pad printing technique. Heat-treated blue leaf hands baked at 290 degrees create a perfect optical contrast on the dial.

3. Caliber 2892 Movement Disassembly and Parts Details

The part quality was examined by disassembling the mechanism wheel by wheel under our workshop microscope. In the caliber that uses the Swiss ETA 2892 / Longines L619 architecture exactly, the main pump, escapement wheel and balance spring work with original tolerances.

4. Geneva Stripes (Côtes de Genève) and Perlage Grinding

The circular perlage grinding on the movement bridges and the Côtes de Genève lines on the automatic winding rotor have been polished to the micron level. In the Timegrapher test, stability of +2 seconds per day was recorded at a frequency of 28,800 vph.