The Breitling Top Time Chronograph Ref. 815, nicknamed "Long Playing", was introduced by Breitling in 1970 as part of the second generation of Top Time models, positioned as an entry-level chronograph for a younger and more dynamic clientele. This model is known for its 38mm stainless steel case and its manual-winding Valjoux 7736 movement. The "Long Playing" moniker comes from its extended power reserve of 52 hours, achieved with a longer mainspring, and its ability to record events up to 12 hours via the sub-dial at six o'clock. The dial is typically in a "Panda" or "Reverse Panda" configuration, often with a silver sunburst finish and black or dark brown sub-dials, giving it a sporty and elegant look.