Seiko 3027 3MY = 3027 3MZ (No Returns)

Genuine Seiko replacement part including factory-specified clip, designed for solar and kinetic Seiko watches using specific movement calibres.

✅ Confirm Compatibility by Calibre Number

To ensure you purchase the correct capacitor, always check the calibre number stamped on the movement inside the watch (not on the cell itself).
While the cell numbers may be the same, the clip configuration differs, making some cells incompatible even if they look identical.

⚡ Charging Instructions

Capacitors are shipped with minimal charge and require charging after installation:

• For solar watches, place the watch in direct sunlight, ideally on a windowsill.

• For kinetic models, recharge by wearing the watch regularly or using a kinetic charger.

It may take several hours or more for a full initial charge. If the capacitor doesn't hold charge, the issue is likely with the charging mechanism or internal movement, not the capacitor itself.

⚠️ No Returns Accepted on capacitors due to the nature of electronic components and handling.

🔄 Replaces Discontinued Seiko Parts:

• 3027 29N

• 3027-29N

• 302729N

• 3027 3MZ

• 3023-5MZ

• 30235MZ

🔧 Compatible With the Following Calibres:

• 3M21 / 3M21A

• 3M22 / 3M22A

• 3M43 / 3M43A

• 3M62 / 3M62A

• V102 / V102A

• V103 / V103A