Omega - Speedmaster Professional Moonwatch - Men - 1990-1999

Brand: Omega
* Collection: Speedmaster
* Model: Speedmaster Professional Moonwatch
* Reference: ST 145.0022
* Period: 1990–1999
* Gender: Men/Unisex
* Movement: Manual-winding mechanical
* Caliber: Omega 861
* Frequency: 21,600 vph
* Power reserve: about 48 hours
* Case material: Stainless steel
* Diameter: 42 mm
* Dial: Black with three sub-dials
* Crystal: Esalite/Plexiglas
* Bezel: Black with tachymeter scale
* Functions: Hours, minutes, small seconds and chronograph
* Counters: 30 minutes at 3 o'clock, 12 hours at 6 o'clock, small seconds at 9 o'clock
* Date: Absent
* Original water resistance: 5 ATM/50 meters, but not guaranteed without a recent pressure test
* Case back: Closed, with engravings dedicated to NASA qualification and the first watch worn on the Moon
* Bracelet: Omega stainless steel, only if the one mounted is actually original
* Lug width: 20 mm