The Cartier Santos Galbée (Reference 187901) is a highly celebrated neo-vintage timepiece originally introduced in 1987. This specific model represents a key milestone in the Santos lineage, modifying the previously rigid, boxy edges of the classic "Carrée" design with curved, ergonomic lugs and a case profile built to wrap comfortably around the wrist.

• Dimensions: It features a 29mm width (roughly 32mm including the crown) and a 41mm lug-to-lug length. With a remarkably slim thickness of about 6.5mm, it easily slips under a formal shirt cuff. 

• Materials: Built with a two-tone aesthetic, combining a stainless steel case and integrated bracelet accented by a solid 18k yellow gold bezel and gold bracelet screws.

• Dial: Designed with a classic silver or off-white watch face featuring crisp black-painted Roman numerals, a railroad-track minute pathway, and traditional blued-steel sword hands. 

• Movement: Powered by a reliable, low-maintenance Swiss Quartz movement (typically the Cartier Caliber 87 or 687) that includes a quick-set date function. 

• Complications: Houses a discreet date window located at the 6 o'clock position. 

• Signature Details: Features the traditional Cartier multi-sided winding crown set with a blue cabochon spinel or sapphire and includes the iconic "secret signature" integrated text within the VII or X Roman numeral.