| Brand | Rado |
| Caliber Number | 657 |
| Base Caliber | ETA 2899 (2899-S2) |
| Movement Type | Automatic, self-winding mechanical |
| Jewels | 21 |
| Lignes | 11 1/2”’ |
| Power Reserve | ~42 hours |
| Beat Rate | 28,800 (4 Hz) |
| Anti-Shock System | Incabloc |
| Rotor Style | Ball bearing system |
| Hacking Seconds? | Yes |
| Hand Count | 3 |
| Features | Offset hours and minutes dial; offset running small seconds subdial at 9:00, date at 9:00 |
| Country of Manufacture | Switzerland, Swiss made |
| Known Models | Rado Diamaster Grande Seconde (Please add your watch in the comments below…) |
What is often referred to as the Rado caliber 657 is actually an ETA caliber 2899. Click here for the ETA 2899 caliber listing.
network of watch sites
Recent Comments
Militado got this movement
Henry Archer Vesterhav. Mine is running at +2 sec/day. I do wish that the movement…
Step 1) Set the time correctly. Step 2) Wait 24 hours. Step 3) Compare the…
The wonderfully underrated Festina Automatic Skeleton (20632/1) also uses this movement. It keeps time better…
17 is the grout number. ST1701 is the specific automatic calibre and ST1700 the manual…
Duzu Watches of Western Australia use this movement in their DW-D3 diver range