Speedmaster Professional (Calibre 861 Generation)
In 1968, reference ST 145.022 introduced the Calibre 861 generation. Replacing Calibre 321 with a more robust and production-friendly movement, it became the long-running foundation of the Moonwatch line. Reference ST 145.022 provides a clear pre-owned search key for this distinct 1968 generation.
History timeline
1968
New Generation
Speedmaster Main Line
Explore the Lineage
- 1957 — OMEGA Speedmaster (First Generation)
- 1959 — OMEGA Speedmaster (Second Generation)
- 1964 — OMEGA Speedmaster (Fourth Generation)
- 1968 — OMEGA Speedmaster Professional (Calibre 861 Generation)Currently viewing
- 1997 — OMEGA Speedmaster Professional (Calibre 1861 Generation)
- 2021 — OMEGA Speedmaster Moonwatch (Eighth Generation)
No longer available for purchase directly.
Source: OMEGA Official