Comparison
Grand Seiko SLGT005 vs Jacob & Co. AS310.21.SP.AA.A
Sourced specs side by side. A value is highlighted only where one is objectively greater (power reserve); size and the rest are a matter of taste. unknown means no sourced value yet.
At a glance
- Both use a manual movement.
- Jacob & Co. AS310.21.SP.AA.A is 0.2 mm larger (44 mm vs 43.8 mm).
| Spec | SLGT005 | AS310.21.SP.AA.A |
|---|---|---|
| Brand | Grand Seiko | Jacob & Co. |
| Family | Collection | Astronomia |
| Reference | SLGT005 | AS310.21.SP.AA.A |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | unknown |
| Retail price | unknown | unknown |
| Case material | Platinum | unknown |
| Diameter | 43.8 mm | 44 mm |
| Jacob & Co. AS310.21.SP.AA.A is 0.2 mm larger | ||
| Movement | Manual | Manual |
| Caliber | unknown | unknown |