Omega

How to set up Speedmaster Apollo editions with calibre 1861

· cal. 1861

Partial Unverified: Model list not individually verified; procedure follows the calibre. Time Chronograph Tachymeter Hand-wound

Short answer: If the case back or papers of your Apollo edition say calibre 1861, set it up like the Moonwatch 1861: wind at crown position 1, set the time at 2, no stop-seconds. If it says 3861, use the 3861 guide.

Written by Catalin Alexandru · Last checked: 2026-10-17 against OMEGA operating instructions — all calibres

Apollo editions with calibre 1861 (e.g. Apollo 17 45th, Apollo 15 40th) at a glance

What is different about this model

We have not checked each Apollo edition one by one, so we confirm only the calibre-based procedure.

Set-up steps

This watch is set up the same as the Omega Speedmaster Moonwatch Professional (pre-2021, Hesalite). The full written steps are on that guide:

• Reset chronograph hands on the Omega Speedmaster Moonwatch Professional (pre-2021, Hesalite)
• Set the time on the Omega Speedmaster Moonwatch Professional (pre-2021, Hesalite)
• Start a stopped watch on the Omega Speedmaster Moonwatch Professional (pre-2021, Hesalite)

Sources

• OMEGA operating instructions — all calibres (manufacturer PDF)