Girard-Perregaux - 21 Chronoscaph - GP 4900 - Men - 1990-1999

Girard Perregaux GP 4900 (Ref. 4910) in steel with gold details/pushers showing small signs of wear. Automatic.
Girard-Perregaux GP 4900 (Ref. 4910) features the following official technical specifications:
Dial diameter: 38 mm (excluding the winding crown). It is a classic, well-proportioned and elegant size, typical of chronographs of this era.
Case thickness: Approximately 10.5 mm – 11 mm, making it a particularly slim and comfortable chronograph on the wrist.
Lug-to-Lug: Approximately 45 mm.
Model Details
Model Name: Girard-Perregaux GP 4900 Chronograph
Reference: 4910 (often listed in full as Ref. 4910 / 4900)
Type: Automatic three-register chronograph with date window (usually positioned at 3 o'clock or between 4 and 5 o'clock depending on the dial variant).
Movement / Caliber: Powered by the GP 8000 caliber (or base ETA 2892 with a Dubois-Dépraz chronograph module), a reliable, precise and slim movement.
Materials: Stainless steel case with gold details on the chronograph pushers, crown and sometimes bezel (18k / bi-color).
Crystal: Scratch-resistant sapphire crystal.