| Brand | Omega |
|---|---|
| Family | Constellation |
| Model | Constellation |
| Reference | 131.23.41.21.03.001 |
| Features | Anti‑magnetic Automatic watch Chronometer Date Master Chronometer Certified Sedna Gold™ Transparent case back |
| Bracelet | Leather Strap |
| Between lugs: | 24.2 mm |
| Case | Steel ‑ Sedna™ Gold |
| Case Diameter | 41 mm |
| Dial colour: | Blue |
| Crystal | Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides |
| Water Resistance | 5 bar (50 metres / 167 feet) |
| Movement | CALIBRE OMEGA 8900 |
| Power Reserve | 60 HOURS |
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