Watch is in good working condition, with signs of wearing Case is made from 14ct solid yellow gold. Ref 131 021 Serial Number 26662233 Year 1968 Omega cal.601 Technical Details Lignes Dimensions 12.59 ‴ Dimensions 28.4 mm Height 3.35 mm Further Measures Mounting Diameter (Dm): 27.9mm Stem height (T): 1.65mm Mounting Height (F): 1.25mm Power Reserve 48 hours Frequency 19,800 vph Jewels 17 Lift Angle 49 degrees Complications and Specifications Shape Round Complications Sweep Second Shock Protection Incabloc Regulator Type Pinned Regulator (or Index Regulator) Movement Type Manual Escapement Type Swiss Lever Control Type Balance Wheel Winding Type Stem Winding Setting Type Stem Set Additional Information Hand Sizes 1.50 x 0.80 x 0.18mm Hand Count 3 Country Of Manufacture Switzerland Notes Remarks: 1962-1970 Other data: balance staff: U2769 stem: W2794 / W3136 wrist / pocket watch stem ronda: 1396 (12) Mainspring: 1.050 x 9.500 x 0.120 x 360.000 mm Signature 1970: 32125893, Omega Watch Co, Swiss, Adjusted 2 Positions, 17 Jewels; Incabloc