Now available at auction from Second Vintage A highly capable and versatile modern Speedmaster, this chronometer-certified automatic chronograph combines classic styling with everyday reliability. Maintained in excellent overall preservation, it features sharp case geometry, a flawless dial, and matching serial numbers on both the case lug and the movement. Brand: Omega Model: Speedmaster Reference Number: 178.0055 Serial Number: 81623766 Movement: Caliber 1164 automatic chronograph, 25 jewels Dial: Matte black with concentric circular snailing on the subdials Case Size: 40mm (excluding the crown) Case Material: Stainless Steel Production Year: 2000s Condition: Excellent used condition. Timegrapher: -10-12s/day with strong amplitude, performing remarkably well. Dial and Hands The matte black main dial reveals excellent depth and texture, highlighted by concentric circular snailing on the subdials. The applied Omega logo and faceted hour markers remain clean and bright, while all printed text is crisp and fully intact. A clean date window is positioned at 3 o'clock with sharp numerals. The luminous plots are clean, showing no visible degradation. The pristine original polished steel hands feature luminous fill that appears consistent with the dial, exhibiting no visible oxidation, scratches, or corrosion. Case and Crystal The well-preserved modern case displays strong factory lines, highlighted by sharp twisted lug geometry and well-defined transitions between the brushed and polished surfaces. Light superficial scratches are present on the polished flanks and lug tops, consistent with careful wear, with no significant dents or deep dings visible. The black aluminum tachymetre insert is clean with crisp silver print, while the outer steel bezel ring shows very light handling marks but no major dents. The signed Omega crown features sharp fluting, and the chronograph pushers are clean and free of significant wear. The serial number is clearly engraved on the underside of the 7 o'clock lug. A domed sapphire crystal protects the dial, remaining clear with no visible scratches, chips, or hazing, and its anti-reflective coating appears intact. Movement The chronometer-certified Omega caliber 1164 automatic chronograph movement is visually clean, showing no signs of moisture, corrosion, or oxidation. Crisp perlage and Geneva stripes decorate the mechanism, complemented by a sharp rotor engraving. The engravings read OMEGA 1164, 25 JEWELS TWENTY-FIVE SWISS, and proudly display the serial number 81623766, perfectly matching the case lug. The timegrapher records -10-12s/day with strong amplitude. Exhibiting remarkable accuracy and consistency, performing brilliantly for a mechanical timepiece. Strap The watch is fitted with its original signed bracelet, a robust stainless steel Omega reference 1564/975 in great condition. It features solid endlinks marked 975 and a clasp signed with the Omega logo and Speedmaster text. Light desk-diving scratches are visible on the clasp and some links, consistent with normal use, with no significant stretch observed. The bracelet accommodates a maximum wrist size of 19cm. Condition Excellent used condition. The watch is beautifully preserved, featuring a flawless dial and pristine hands. The case retains sharp geometry, presenting only light superficial scratches on the polished flanks and lug tops, along with very light handling marks on the steel bezel ring. The original steel bracelet shows minor desk-diving wear on the clasp and links. Supported by the timegrapher result of -10-12s/day with strong amplitude, the movement is performing strongly. Dimensions 40mm (excluding the crown) Remarks This Speedmaster is a superb modern chronograph offering chronometer-certified precision. The presence of matching serial numbers on the case and movement, combined with its original robust steel bracelet and excellent aesthetic preservation, makes it a highly compelling mechanical timepiece for daily wear. History The Omega Speedmaster family is widely regarded for its reliability, legibility, and functional design. This specific iteration brings the convenience of an automatic chronometer movement and a practical date complication to the classic Speedmaster layout. Produced during the 2000s, it represents a highly capable era of Omega manufacturing, delivering robust mechanical performance alongside the enduring styling that has defined the collection for decades. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and securely packaged, then shipped with tracking and insurance for your peace of mind. We use fast express shipping, with typical delivery within 1–4 business days, depending on the destination. Please note that vintage watches may show minor signs of wear, aging, or imperfections, which are considered normal for watches of this age. We kindly ask you to review all photos carefully before bidding. We photograph each watch from multiple angles to provide the most accurate representation possible, and the photos form an important part of the description. The timegrapher assessment if provided is seen as an indication of the movement’s condition under fully wound testing conditions. As with all vintage watches, results may vary in daily use. If you have any concerns regarding functionality or defects after delivery, please contact us within 3 days of receiving the watch so we can assist you. As with all used watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: OME-OSA-0029