Case in 18-carat gold with a delicately fluted caseband. Sapphire-crystal caseback. 30mm diameter. Welded lugs with screw bars. Water-resistant to 3 bar (30m).
Dial individually numbered and signed Breguet. Hours chapter with Roman numerals. Moon-age and -phase indicator, plus small seconds at 6 o’clock. Breguet open-tipped hands in blued steel.
Self-winding movement, numbered and signed Breguet. Cal. 537L. 83/4 lignes. 26 jewels. 45 hours power reserve. In-line Swiss lever escapement in silicon. Silicon balance-spring. Balance frequency 3.5Hz. Adjusted in 6 positions.
Leather strap.