Rolex calibre 1570 review.

Rolex 1570 was introduced in about 1965 as a replacement for the 1560. The main difference is the gear train is geared for for a higher beat rate and a new balance design. The new movement now had a beat rate of 19800 A/H from 1800. It also features a free Breguet hairspring balance with regulating screws. The 1575 (marked 1570) is the date version. The 1575 GMT features a 24 hour display. Later versions feature hacking lever and a final 1580 variant antimagnetic (Milgauss)

Rolex calibre 1570 series. 

  • Manufactured approximately 1965-1989
  • Made in Switzerland 
  • Power reserve 48hours 
  • 25-26 Jewels 
  • Lift angle 52°
  • Dm 28.3mm-28.5mm
  • H 5.75mm

The movement bridges are finely finished with various perlage finish and angled edges. Centre seconds construction involves overlaying wheel driving a pinion. To avoid a stuttering second hand the pinion is tensioned by a spring. Not an ideal solution, but does the job. Very fine finish on screws.

Surface finish on top side of the plate and bridges: 8 Points

Surface finish on screws: 10 Points

Surface finish on crown and ratchet wheel: 7 Points

Movement Jeweling: 8 points 

The movement is designed to be an automatic and is very robust.

Movement design innovation (for ca 1965):  9 points

The Rolex base plate dial side has a decent perlage finish on both the dial side and gear train side. Winding mechanisms are well made with a fine finish. The date change is a very clever design that is instant and has little effect on amplitude. 

Base plate finish: 8 Points

Setting and winding mechanism: 8 Points

Date change snappiness 10 Points

Gear-train finish: 9 Points*

Movement durability: 8 Points

1575 GMT adds: 5 bonus points *

A quality feature that I always appreciate is a guard plate, to protect the bridge surface from the ratchet wheel. 

3 extra bonus points 

The beat error is regulated on the balance cock with a locking screw. 

2 extra bonus point 

Later models do also feature hacking leaver

2 Extra bonus points* 

The 1580 antimagnetic*

5 extra bonus points 

Autowinder mechanism winds in both directions and is very smooth. 

9 points 

These movements are always very accurate when in good condition. And usually keep within COSC specifications. 

Accuracy 9 points 

Power reserve 48 hours is very good for an automatic of this time period. 

9 points 

Rolex 1570-75-80 points summary: 

Surface finish on bridges and top side of base plate: 8

Surface finish screws: 10

Surface finish on ratchet and ratchet wheel: 7

Movement Jeweling: 8

Movement innovative design: 9 

Total bonus points: 5-12*

Base plate finish: 8

Setting and winding mechanism: 8

Date change snappiness: 10* 

Gear-train finish: 9

Movement durability: 8

Autowninder mechanism: 9 points

Accuracy: 9

Power reserve: 9

Grand total: 107-124*

*If it has extra bonus points

Weak points are barrel bridge can get worn (not jewelled) Autowinder wheels can get worn. Rolex does not supply parts to independent watchmakers. 

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