Rolex 6241 PN.png

Main characteristics

· OYSTER case 

· Metal bezel with black plastic insert and tachymeter printed in white calibrated to 200 units

· Domed plexiglas crystal model TROPIC 21

· Printing on dial: 

       - 'ROLEX COSMOGRAPH'

       - 'DAYTONA' (Not always present)

· Pump push-down buttons

· OYSTER TWINLOCK 600 series winding crown

· VALJOUX movement: 

       - Caliber 722 from 1965 to 1967 aprox.

       - Caliber 722-1 during last production

Characteristics

  • Produced from 1966 to 1969.
  • Produced in stainless steel, 14kt and 18kt gold.
  • The overall production is around 3000 pieces: 
    • 1/4 in 14kt and 18kt gold, around 750 pieces.
      • there was around 300 pieces in 18kt and around 400 in 14kt gold. 
    • The remaining 3/4 were made in steel.
  • The reference 6241 was bearing an OYSTER case.
  • Pump push-down buttons in chromed metal, model 24-P3.
  • OYSTER TWINLOCK 600 series winding crown in ridged metal with raised underlined Rolex logo.
  • Domed plexiglas first series crystal, model TROPIC 21.
  • Unspecified waterproof depth, that is the reason why the OYSTER signature is not present on the dial.
  • Hour and minute hands in laminated metal with Tritium. Chronographic seconds hand in burnished metal or polished on black dial.
  • Has a metal, polished case back. Starting from 1966 for ref. 6241 Rolex uses an oval shaped case (also introduced for ref. 6239 in the same time period). The early productions have a round case just like for references 6238 and 6239 but from approximately 1966 on, the design is modified by accentuating the convex of the curve in correspondence to the winding crown, making it oval shaped. The modification was also applied to reference 6239.
  • Satin finish inside the case back with the Rolex name stamp, the Rolex patent, the material of construction and reference number. In this model it is also present the signature C.R.S. representing the initials of the manufacturer Charles Reneè Spielman. Occasionally the reference number stamp may vary from the actual reference model engraved between the upper lugs of the case.
  • Upper lug (12 o'clock) ---> REGISTERED DESIGN

                                                                   6241

  • Lower lug (6 o'clock)--->  STAINLESS STEEL (when the case is in steel)

                                                      Serial number 

Irregularities in the engraving (like the one above) can be attributed to the limits of a manual pantograph.

Bracelet

Earlier models of ref. 6241 are equipped with riveted bracelets ref. 6635 or 7205 and 19mm curved fittings Nº 71. Around 1968 Rolex introduces the new bracelet with bended links ref. 7835 with 19mm curved fittings Nº 271.

bezel

In metal with black plastic insert and tachymeter printed in white. Speed measured up to 200 units per hour.

Speed scale :

               From 50 to 100, intervals of 1 unit.

               From 100 to 140, intervals of 5 units.

               From 140 to 160, intervals of 10 units.

               From 160 to 200, intervals of 20 units

Movement

Ref. 6241 bears a movement VALJOUX and has the calibers 722 and 722-1.

Above there is a clear example of a caliber 722-1 and text on 5 lines engraved on the chronograph bridge.

Dial

  • Realised in both standard two-tone and Paul Newman dials.
  • Chromatic contrast between dial and registers, which are raised concentric circular ridges, slightly sunken in respect to the level of the dial.
  • Dials with the cherry Daytona (positioned always above the hour register) are post-production, made from the 1970's on.

  • Printing on dial: 

           - ROLEX COSMOGRAPH

           - DAYTONA (Not always present)