- Home
- Watches
- WatchSpare Archives
- Omega - Speedmaster Reduced Automatic "Marui" Ref. 3510.21
Here is an Omega Speedmaster Reduced Automatic “Marui", reference 3510.21.
Its 39 mm stainless steel case houses the distinctive white “Marui” dial, featuring three black subdials and white hands for a striking contrast. The watch is in pristine condition, fitted with an Omega service case and a stainless steel bracelet suitable for wrists up to 17 cm.
Powered by the automatic Omega caliber 1140, based on the ETA 2890-2, this movement has just undergone a full in-house service in October 2025.
This Speedmaster Reduced “Marui” comes with our 6-month warranty.
| Brand | Omega |
|---|---|
| Model | Speedmaster Reduced Automatic "Marui" |
| Reference | 3510.21 |
| Year of production | Circa 1990 |
| Material | Stainless Steel |
| Movement | Automatic |
| Diameter | 39 mm |
| Caliber | Omega 1140 |
| Ruby | 21 |
| Power reserve | 42h |
| Glass | Hesalite |
| Bracelet | Stainless Steel |
| Accessories | None |
| Service | Yes |
| Warranty | 6 months |