Omega 8500 Movement Date Indicator 7228500A9144D02

Product Description

The Omega 8500 Movement Date Indicator (7228500A9144D02) is a genuine Swiss-made component for the Omega Caliber 8500 Co‑Axial automatic movement. This date indicator is a critical part of the calendar mechanism, displaying the current date through the dial window. It is listed as a service part in the official Omega 8500 spare parts list under reference 9144.

Features & Function

• Genuine Omega part – authentic Swiss-made component listed in official technical documentation

• Calendar mechanism component – displays the date through the dial window

• Precision-printed numerals – clear and legible date display

• Service replacement part – recognized in official Omega 8500 spare parts list

Specifications

• Part Number: 7228500A9144D02

• Compatible Movement: Omega Caliber 8500 (Co‑Axial automatic)

• Movement Diameter: 29.00 mm

• Movement Height: 5.5 mm

• Jewels: 39

• Frequency: 25,200 vph (3.5 Hz)

• Power Reserve: 60 hours (two series-coupled barrels)

• Date Display: Window at 3 o’clock position

• Origin: Switzerland (Omega factory part)

• Condition: Brand new

Applications

• Service and overhaul of Omega Caliber 8500 movements

• Calendar mechanism repair – replacing worn, faded, or damaged date indicators

• Restoration of De Ville Hour Vision, Seamaster Aqua Terra, Constellation, and other 8500‑powered models

• Suitable for professional watchmakers and authorized service centers

FAQs

1. Is this a genuine Omega part?

Yes, this is a genuine Omega factory part (reference 7228500A9144D02), manufactured in Switzerland. It is listed in the official Omega 8500 spare parts list under “Date indicator”.

2. What is the difference between 7228500A9144D02 and 7228500A9144E24?

Both are genuine Omega date indicators for the Caliber 8500. The suffix D02 indicates a white date disc with black numerals, while E24 indicates a different color variant. Please check the official Omega parts list for your specific reference.

3. What is the function of the date indicator?

The date indicator is part of the calendar mechanism that displays the current date through the dial window at the 3 o’clock position. It is driven by the date indicator driving wheel during the date change at midnight.

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