Ball Caliber Rr1103

Ball Caliber RR1103

Ball Caliber Rr1103

Brand Ball
Caliber Number RR1103, RR1103-C
In-House?
No
Base Caliber
ETA 2824-2 or Sellita SW200-1 (see below)
Movement Type
Automatic, self-winding mechanical
Lignes
11.5”’
Diameter 25.6mm
Thickness 4.6mm
Power Reserve ~38 hours
Jewels 25 or 26 (see below)
Vibrations Per Hour
28,800 bph, 4Hz
Lift Angle
50 degrees
Shock Protection Incabloc
Regulator Etachron
Rotor Type
Ball bearing
Rotor Winding Direction
Bi-directional
Hand-Windable?
Yes
Hand Winding Direction
Clockwise
Hacking? Yes
Functions Central hours, central minutes, central sweeping seconds, date at 3:00 (could be different depending on the date window cutout on the dial)
Country of Manufacture Switzerland, Swiss made
Known Models
Engineer II Pioneer (ref: NM2026C-S4CAJ-SL), Engineer Master II Skindiver II (ref: DM3108A-SCJ-BK), Ball Fireman NECC (ref: DM3090A-SJ-BE), Ball Engineer II Magneto S (ref: NM3022C-N1CJ-BK) (Add your watch in the comments below…)

The Ball caliber RR1103 is a Swiss made automatic watch movement. It is not manufactured by Ball, and can be based on either an ETA 2824-2 or Sellita SW200-1.

Some of the topics covered in this caliber listing:

25 or 26 Jewels?

You may have noticed that the official Ball site says this about the caliber RR1103:

“Jewels: 25 or 26 (depending on the execution)” –source

The difference in execution that they are referring to depends on whether the base movement is an ETA 2824-2 or Sellita SW200-1 (a clone of the ETA 2824-2). If the rotor on your watch says 25 jewels, it is powered by the 2824-2. If it says 26 jewels, it has the SW200-1.

Note: If you look closely at the image Ball uses for the RR1103, it is an ETA 2428-2.

Ball Caliber RR1103-C:

Ball only lists the calibre RR1103 in their catalog of movements, but some watches are listed as having the RR1103-C. The C appears to designate RR1103 powered watches that are using chronometer grade movements.

Ball Caliber RR1103-CSL:

Similar to the caliber RR1103-C above, the RR1103-CSL movements are chronometer grade, but also have Ball’s patented SpringLOCK technology to protect the hairspring against shocks.

Incabloc Anti-Shock:

All of the examples we’ve seen so far of the Ball RR1103 are using Incabloc anti-shock devices. This can give some insight as to the grades they are using for the non-chronometer movements, and also possibly some insight as to whether they do any modifications on their own (other than the custom decorated rotor). If you have an RR1103 with Novodiac anti-shock, please post it in the comments below.

Additional Resources:

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