Art. No. 1539 Basic information Manufacturer: Omega Model: Constellation Winding: Mechanical, automatic Lug to lug 39,75 mm Diametre excluding crown: 35 mm Height (highest point): 11,25 mm Strap width, Attach/Buckle: 19/16 mm Strap size, Long/Short (excl. Watch): 120/75 mm Data Year (not validated by manufacturer): 1968 Serial no: 26956141 REF.no/Case no.: 168.018 Jewels: 24 Looks and materials Strap material: Leather Strap color: Green Case type: Screw down case, 3 parts Case material: Stainless steel Crystal material: Acrylic Dial: Silk, silver Buckle material: Stainless steel Movement and meassurements (meassured in 6 positions) Caliber: CAL 564 Average time deviation (sec / day): 2 Average amplitude (degrees): 225 Average beat error (ms): 0,2 Frequency (bph): 19800 Vacuum / Pressure test: FAIL VAC, PASS 1 BAR PRE Stated powerreserv*: 50 h Extended information Service, hands: Original hands** Service, case: Cleansed case in original state** Service dial: Dial in original state** Service, buckle: Buckle/Clasp not exchanged by Marcels Watch Group Service, crown: Original crown** Service, crystal: Original crystal** Service strap/bracelet: New Wristbuddys Service, movement: Miniservice Accessories Service documents: Yes Certificate of authenticity: Yes Box: No box Certificate: Certificate from Marcels Watch Group Grading and assessments Color grade dial: Riverside Damage grade dial: Flawless Condition case: NP-DG Overall impression: Grade AA Warranty***: 12 months Remark: Case with minor traces of use, most likely previously polished at some point Other *Deviation is to be anticipated **Originalpart mounted on the watch when purchased, no guarantee that it is factory original ***Function warranty, i.e. the functions is guaranteed to work during this time given that the watch is treated within the guidelines of treatment. In the event of outer mischief, warranty is not applicable See https://www.marcelswatch.com/en/vintage-guide/ for grading information See https://www.marcelswatch.com/en/vintage-guide/ for grading information Official website information: https://www.omegawatches.com/en-se/watch-omega-constellation-omega-st-168-0018
