Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

Create a detailed description for the following product: Porsche Design Timepiece No. 1, belonging to category: Chronograph

### Response:
Timepiece No. 1 is the first to be developed completely in-house. Its design  is based on the same principles as Professor Ferdinand Alexander Porsche’s legendary black Chronograph I. The aesthetics of the dial further reflect the purism of Porsche Design. The hands and bar indices are filled with white luminescent material so the large dial is perfectly readable at all times. The model  is equipped with a mechanical ETA Valjoux 7750 chronograph movement that has a power reserve of 48 hours. The blackened sapphire crystal case back shows the inner workings of the energy-optimised Porsche Design rotor.
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