VACHERON CONSTANTIN REF. 6990. CIRCA 1970 Extra-flat wristwatch in 18K (750) white gold. Case: rectangular with rounded corners, screw closure, revision sticker on caseback. Dial: silvered, painted Roman numeral hour markers, blackened hands. Movement: mechanical, extra-flat, cal. 1003, 17 jewels, faux-cotes decoration, double hallmark of Geneva, N° 598'262. Strap: woven white gold, single buckle hallmarked Gay Frères, with Maltese Cross. Dial, case and movement signed. Numbered 422'028. Dim. 31 x 24 mm, length: 16 cm Gross weight: 57.74 g