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Rolex - 6430 - Speedking - Mens

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Name 6430
Family Speedking
Gender Mens
Movement Rolex 1225 (Details)
Years in Production 1960s
Case Diameter (mm) 30
Mechanism Automatic
Chronometer No
Hacking No
Date Function Yes
Quickset No
Power Reserve (Hours) 58
Frequency (bph) 21,600
Jewel Count 17
Band Replaceable No

Notes: Mid size Mens/Unisex watch; Silvered satin finished dial, applied baton numerals; Stainless steel Rolex Oyster case with screw-down crown and case back; Case, dial, movement and crown signed.; Diameter of the case excluding winding crown: 31mm; Lug gauge/strap width: 17mm; Original Rolex Stainless Steel Oyster Rivet Bracelet; Bracelet approx 18 cm in length.

The Rolex 1225 is the date-version of caliber Rolex 1220, which represents a dramatic evolution of caliber Rolex 1210. Caliber Rolex 1220 shares the same mechanical platform of caliber Rolex 1210 with the exclusion of the Breguet spring. The balance wheel oscillating frequency increases from the original 2,5Hz (18000 vph) to 3Hz (21600 vph). Caliber Rolex 1225 is a Rolex 1220 caliber with the addition of a date module. The caliber's thickness moves therefore from the original 4,27mm of caliber Rolex 1220 to the 5,07mm of caliber Rolex 1225.

The 1225 is NOT chronometer certified.

Item created by: gdm on 2018-09-30 12:18:05

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