Steel Speedmaster Gemini 4. Ltd edition of 2005 pieces. 3565.80.00. To commemorate the 50th anniversary of the first space walk in 1965, this is written in red at the twelve 1965-2005. Mechanical 1861 hand wound movement with 45 hour power reserve. Blue dial with silver sub-dials, blue tachymeter bezel. Steel bracelet with deployment clasp. Special case back. Ltd edition Box and papers. Our reference S19975.