Omega · Constellation
Omega Constellation Observatory 39.4 mm (platinum and gold)
Reference 140.93.39.21.99.001 · Classic · 39.4 mm
Specifications
- Reference
- 140.93.39.21.99.001
- Family
- Constellation
- Category
- Classic
- Status
- Current
- Case material
- Platinum
- Case diameter
- 39.4 mm
- Case thickness
- 12.3 mm Official
- Lug-to-lug
- 47.2 mm Official
- Lug width
- 19 mm Official
- Water resistance
- 30 m
- Bezel
- —
- Certifications
- METAS Master Chronometer
- Calibre
- 8915 Official
- Power reserve
- 60 h
Official product page · retrieved October 15, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
Comfortable
Lug-to-lug 47.2 mm on a flat top of 54.1 mm: 87 % of the width.
Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 12.32 mm | Official | Omega | October 15, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 47.2 mm | Official | Omega | October 15, 2026 |
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
| Value | Type | Source | Date |
|---|---|---|---|
| 19 mm | Official | Omega | October 15, 2026 |
Calibre source
Official Omega · retrieved October 15, 2026
Other Constellation references
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Constellation Observatory 39.4 mm 140.13.39.21.02.001 | 39.4 mm | 12.2 mm | 47.2 mm | 8914 |
| Constellation Observatory 39.4 mm (Canopus gold) 140.53.39.21.99.004 | 39.4 mm | 12.2 mm | 47.2 mm | 8915 |
| Constellation Observatory 39.4 mm (Moonshine gold) 140.50.39.21.99.001 | 39.4 mm | 12.2 mm | 47.2 mm | 8915 |
| Constellation Observatory 39.4 mm (Sedna gold) 140.53.39.21.99.002 | 39.4 mm | 12.2 mm | 47.2 mm | 8915 |
| Constellation 39 mm 131.10.39.20.02.001 | 39 mm | 12.4 mm | 41 mm | 8800 |
| Constellation 39 mm (steel and Sedna gold) 131.20.39.20.02.001 | 39 mm | 12.4 mm | 41 mm | 8800 |
| Constellation 39 mm (steel and yellow gold) 131.20.39.20.02.002 | 39 mm | 12.4 mm | 41 mm | 8800 |
| Constellation 41 mm 131.30.41.21.04.001 | 41 mm | 13.5 mm | 44 mm | 8900 |
| Constellation 41 mm (steel and Sedna gold) 131.23.41.21.06.001 | 41 mm | 13.5 mm | 44 mm | 8900 |
| Constellation 41 mm (steel and yellow gold) 131.23.41.21.06.002 | 41 mm | 13.5 mm | 44 mm | 8900 |
| Constellation 41 mm (yellow gold) 131.63.41.21.01.001 | 41 mm | 13.5 mm | 44 mm | 8901 |
| Constellation Quartz 36 mm 131.10.36.60.01.001 | 36 mm | — | 39.1 mm | 4564 |
| Constellation Quartz 36 mm (steel and yellow gold) 131.20.36.60.02.002 | 36 mm | — | 39.1 mm | 4564 |
| Constellation Small Seconds 34 mm 131.10.34.20.02.001 | 34 mm | 11.7 mm | 37 mm | 8802 |
| Constellation Small Seconds 34 mm (Sedna gold) 131.58.34.20.61.001 | 34 mm | 11.7 mm | 36.9 mm | 8803 |
| Constellation Small Seconds 34 mm (steel and Sedna gold) 131.20.34.20.63.001 | 34 mm | 11.7 mm | 37 mm | 8802 |
| Constellation 29 mm 131.15.29.20.60.001 | 29 mm | 12 mm | 31.2 mm | 8700 |
| Constellation 29 mm (steel and Moonshine gold) 131.25.29.20.58.002 | 29 mm | 12 mm | 31.2 mm | 8700 |
| Constellation 29 mm (steel and Sedna gold) 131.25.29.20.52.003 | 29 mm | 12 mm | 31.2 mm | 8700 |
Other Omega models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| De Ville Trésor 40 mm 435.13.40.21.02.001 | 40 mm | 10.1 mm | 44.8 mm | 8910 |
| De Ville Trésor Power Reserve 40 mm 435.13.40.22.01.001 | 40 mm | 10.1 mm | 44.8 mm | 8934 |
| De Ville Trésor Power Reserve 40 mm (yellow gold) 435.53.40.22.02.001 | 40 mm | 10.7 mm | 44.8 mm | 8935 |
| De Ville Trésor Small Seconds 40 mm 435.13.40.21.03.002 | 40 mm | 10.1 mm | 44.8 mm | 8926 |
| De Ville Trésor Small Seconds 40 mm (Sedna gold) 435.53.40.21.11.002 | 40 mm | 10.7 mm | 44.8 mm | 8927 |
| Seamaster Aqua Terra 150M 38 mm 220.10.38.20.01.004 | 38 mm | 12.3 mm | 45.1 mm | 8800 |