The Vacheron Constantin Royal Eagle Chronograph (Reference 49145/339A-9057) with the grey panda dial is a highly distinctive, neo-vintage masterpiece from a "Holy Trinity" watchmaker. Introduced in the early 2000s, this stainless steel timepiece blends early 20th-century Art Deco geometry with modern, sporty mechanics.

• Movement: Vacheron Constantin Caliber 1137. It is an elite, integrated automatic chronograph based on the high-end Frédéric Piguet 1185 ebauche. 

• Architecture: Utilizes a premium column wheel and a vertical clutch mechanism to eliminate central hand shudder upon starting the timer.

• Layout: Tri-compax arrangement containing a 30-minute counter (3 o'clock), a 12-hour counter (9 o'clock), and running sub-seconds (6 o'clock).

• Case Thickness: Approximately 13mm, matching its sporty yet elegant profile.

• Tonneau-Shaped Case: A 37mm width x 40mm length (approx. 50mm lug-to-lug) stepped tonneau frame that provides a powerful wrist presence while wearing comfortably on smaller wrists. 

• Grey Panda Dial: Features a beautifully textured, speckled grey background contrasted against dark, recessed chronograph sub-dials.

• Big Date: A dual-aperture grand date display located symmetrically at the 12 o'clock position. 

• Stylized Numerals: Oversized, stylized Arabic numerals that dramatically curve to match the contours of the case.

• Steel Bracelet: Comes paired with an integrated multi-link stainless steel bracelet reminiscent of an oversized, heavy-duty jubilee pattern with a butterfly clasp.