Serial: 24.00X.XXX  Dial: "Narrow T" applied logo dial in very good condition. Tritium plots are in good shape. Plots show some degradation and.  Hands: Original Tritium hands in good shape.  Case: 'HF' asymmetrical case. The case has been lightly polished in the past. Lug retain thick & even.  Crown & pushers: Original Fat Neck pushers. Service crown.  Bezel: Clean "DON" (Dot Over Ninety) TACHYMETRE bezel in excellent condition.  Bracelet: Original 1506 bracelet with #16 end links.  Movement: Omega Cal 321. Watch is running and all chrono functions work as they should. No known recent service history.  Accessories: Omega Extract Of The Archives (in rout).  Notes: This watch is a very nice example of a Cal 321. 105.012-65 (actual Moonwatch) Speedmaster Professional with DON bezel.