Breitling Datora (Pre-owned - Excellent) — USD 9,455 on eBay

The Datora represents Breitling's approach to triple calendar complications, housed in a 40mm steel case configuration. This reference combines calendar functionality with the brand's technical watchmaking capabilities, positioning it within Breitling's complication-focused offerings. The 40mm steel case houses an automatic movement and features a silver dial paired with sapphire crystal protection. Water resistance extends to 30 meters, with a fixed bezel completing the case architecture. The steel construction provides durability while maintaining the reference's functional focus. This reference appeals to collectors seeking calendar complications from Breitling's catalog, particularly those favoring steel case construction and traditional dial presentations. The 40mm sizing accommodates contemporary wrist preferences while the triple calendar functionality distinguishes it from simpler time-only references within the brand's steel watch lineup.