Jacob & Co
Jacob & Co Astronomia Solar Zodiac Black DLC Titanium Sapphire AS310-21-SP-AA-A
The Jacob & Co Astronomia Solar Zodiac Black DLC Titanium Sapphire (reference AS310-21-SP-AA-A) is a 44 mm titanium watch with a black dial.
Specifications
Case
- Reference
- AS310-21-SP-AA-A
- Collection
- Astronomia
- Case size
- 44 mm
- Case material
- Titanium
Dial and bezel
- Dial
- Black
Dial versions
This reference was made with these dials and finishes.
AS310-21-SP-AA-A Black
Black
How it compares within the Astronomia family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| AS310-21-SP-AA-A (This watch) | 44 mm | Titanium | Black | — | — |
| AR200-40-AA-AB-A | 43 mm | Gold | Red | — | — |
| AR200-40-AA-AC-A | 43 mm | Gold | Green | — | — |
| AS300-30-AB-AB-A | 45 mm | Gold | White | — | — |
| AS300-40-AA-AE-A | 45 mm | Gold | — | — | — |
| AT860-30-BD-BD-A | 47 mm | Gold | — | — | — |
| AT860-40-BD-BD-A | 47 mm | Gold | — | — | — |
| ATI160-30-AA-AA-A | 47 mm | Gold | — | — | — |
| ATI160-40-AB-AB-B | 47 mm | Gold | — | — | — |
About the Astronomia family
The Astronomia, first shown in 2014, is the watch that established Jacob & Co. in high watchmaking. Its movement is built vertically inside a domed sapphire case, with rotating arms that carry the time display, a multi-axis tourbillon, a small globe and a faceted moon, all turning around the centre of the dial.
The catalog includes Astronomia references in gold and titanium, some set with diamonds, with variations such as the Astronomia Tourbillon and themed editions. These are low-volume pieces, so full documentation, the original box and a service history from Jacob & Co. are essential.
Quick answers
- What size is the Jacob & Co Astronomia Solar Zodiac Black DLC Titanium Sapphire AS310-21-SP-AA-A?
- The Jacob & Co Astronomia Solar Zodiac Black DLC Titanium Sapphire AS310-21-SP-AA-A has a 44 mm case.
- What is the Jacob & Co Astronomia Solar Zodiac Black DLC Titanium Sapphire AS310-21-SP-AA-A made of?
- The case is titanium.
Catalog facts checked October 2026.