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history
| Name | 4220 |
| Family | Speedking |
| Grade | Precision |
| Gender | Unisex |
| Movement | Rolex 710 17J (Precision) (Details) |
| Years in Production | 1940 - 1946 |
| Case Diameter (mm) | 31 |
| Lug Width | 17 |
| Mechanism | Manual |
| Chronometer | No |
| Hacking | No |
| Date Function | No |
| Quickset | No |
| Power Reserve (Hours) | 44 |
| Frequency (bph) | 18, 000 |
| Jewel Count | 17 |
| Band Replaceable | No |
Notes:
The 1940s Speedkings used Aegler manual mechanisms and were designed to be affordable all-purpose watches.
Mechanism:
The Rolex 710 is also known as the Gruen 827 and was in fact made by Aegler (as were all Rolex movements prior to 2004). It is one of the many movements derived from the Hunter 10 1/2. This is the 17 jewel version. Main spring: 1,50 X 8 - 0,09 - 270. Manual wind, screw balance or super balance.
The 710 is closely related to the Aegler 700. The primary difference is the position of the second hand. The 700 is "sub second", whereas the 710 is "center second".
The 710 is closely related to the Aegler 700. The primary difference is the position of the second hand. The 700 is "sub second", whereas the 710 is "center second".
Item created by: gdm
on 2018-10-01 09:49:46
Last edited by: gdm on 2018-10-15 12:40:05
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Last edited by: gdm on 2018-10-15 12:40:05
If you see errors or missing data in this entry, please feel free to log in and edit it. Anyone with a Gmail account can log in instantly.