Omega Speedmaster Professional 5th Ref.145.022-69ST Cal.861, manufactured in 1970

This is the 5th generation Speedmaster model, "Ref. 145.022-69ST," manufactured from around 1969 to 1971.
The case back is engraved only with the "Seahorse" emblem, a specification from before the Apollo 11 moon landing, maintaining its vintage appearance.

Its most distinctive feature is the tropical dial, which has changed from jet black to a deep brown over time.
The exquisite tone, which changes expression depending on how the light hits it, gives it a unique character not found in modern models.
The dial features tritium luminous paint, and the "r" in "Speedmaster" has a long tail, a feature known as "long R." The bezel has also faded appropriately, beautifully unifying the watch's overall vintage tone.

The crystal is genuine Omega, with the 'Ω' watermark in the center. The crown also features the Ω mark.
The bracelet is a later genuine push-button type (Ref. 1998/FF840), offering excellent practicality.

The movement is the highly reliable manual-winding "Caliber 861."
It features the traditional Speedmaster layout, with a 30-minute counter at 3 o'clock, a 12-hour counter at 6 o'clock, and a small seconds hand at 9 o'clock.

Condition

This watch has been overhauled.

The dial has discolored to brown (tropical).
All the luminous paint on the hour hand is missing, and each hand shows age-related dirt and damage. We have intentionally not repaired these to preserve the original vintage feel.
The case and bezel have minor scratches and fading that cannot be removed by polishing, but the watch maintains good consistency and legibility as a vintage item.

The bracelet can accommodate wrists up to 188mm.

As a vintage watch that has been manufactured years ago, it is not water-resistant. Do not use it in damp environments (e.g., on rainy days, when washing your face, or on hot days when you might sweat).
As a precision instrument, please be very careful about drops, strong impacts, and magnetic fields (smartphones, PCs, speakers, etc.).

Operating Cal. 861

Manual winding: Rotate the crown upwards (towards 12 o'clock) in the normal position.

Pulling out the crown: From the back of the case, gently pull out the crown by placing your fingernail under it.

Pulling the crown too forcefully may cause it to come out. Please pull it out gently.
When operating, it is recommended to remove the watch from your wrist to reduce stress on the crown.

Setting the time: Pull out the crown and rotate it upwards (towards 12 o'clock).

* There is no hacking function (seconds hand stop).

Chronograph operation:

• Start/Stop: Use the pad of your finger to press the upper right button firmly all the way down at once.
  * Pressing slowly or halfway may cause the hands to run backward or the operation to be unstable.
• Reset: Always ensure the chronograph is stopped, then press the lower right button firmly all the way down.