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55  of these sold for an average price of: 1,436.821,436.8255 of these sold for an average price of: 1,436.82
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Rolex - 4220 - Speedking - Precision - Unisex
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Name4220
FamilySpeedking
GradePrecision
GenderUnisex
MovementRolex 710 17J (Precision) (Details)
Years in Production1940 - 1946
Case Diameter (mm)31
Lug Width17
MechanismManual
ChronometerNo
HackingNo
Date FunctionNo
QuicksetNo
Power Reserve (Hours)44
Frequency (bph)18, 000
Jewel Count17
Band ReplaceableNo


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".
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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