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Daytona 16520 - Zenith Based Movement - BLACK DIAL
 
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Click here to download
 the article (1MB .pdf file)
 that compares the Zenith
 movement Daytona 
vs. in-house movement

 
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Other pictures of 16520   by Hannes
16520.jpg (599796 bytes)
16520Bglasback1.jpg (188717 bytes)

16520_Balck.jpg (120947 bytes)

 16520Bglasback4.jpg (171779 bytes)
16520_116520.jpg (207561 bytes) 16520Bglasback3.jpg (233146 bytes)

Notes:
Rolex Cosmograph was first introduced in early 1960's with hand wound Valjoux movement. This movement was later replaced in 1988 with automatic Zenith's version of El Primero movement which was modified by Rolex (cal. 4030) before placed in the case. In 2001 Rolex introduced the new in-house made movement (cal. 4130) that is currently powering all Rolex Daytona Watches.
daytona_zenith_El primo mvt.jpg (134110 bytes) Original Zenith El Primero caliber

Rolex Oyster Perpetual - Cosmograph Daytona
• Stainless Steel
• Specially engraved Bezel that can be used for
 calculating speed over known distance or
calculating production of units over time
• Scratch Resistant Synthetic Sapphire Crystal
• Oysterlock bracelet, model 78390A with folding safety clasp.

Excellent information about variations in dials
and bracelets of various 16520 models

• 100m / 330ft water resistant
• Oyster Perpetual  Certified Automatic Chronometer
• Screw Down Crown
• Model 16520 - white dial

Instructions Manual Booklet.

Watch dimensions:
Lugs inside opening: 20mm
H:  46.75 mm -  lug-to-lug        
W: 38.75mm bezel only       
(43mm L side of the bezel to the R edge of the crown)    
  
Thickness: 12.5 mm including sapphire crystal. Weight: 120g

Movement:

Automatic Chronograph Movement, Rolex's own spiral balance-spring; Kif shock absorption; bi-directional rotor; fine regulation via Microstella screws, Breguet balance-spring; stop-seconds function; official chronometer with C.O.S.C. certification

Caliber: 4030 
Jewels: 44
Beats per Hour: 28,800
Power Reserve: ?? Hours 
Beats per Second: 8
Dimensions: Diameter = 30.5mm,
Height = 6.5mm, 
Introduced in: 1988


     
 caliber 4030.jpg (120687 bytes)

Current U.S. MSRP: (02/2005)   $6,975

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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