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Brushed and polished round-shaped case
18K yellow gold and luminescent baton hands, yellow gold applied stick center sweep seconds hand
Double quickset, stop-seconds for precise time setting
18K yellow gold and luminous insert baton-shaped hours/minutes hands, yellow gold stick-shaped sub-dial hands, blackened arrow-shaped chronograph hand
18 yellow gold screw-down solid case back
18K yellow gold screw-down chronograph pushers at 2 (start/stop) and 4 o'clock (reset)
18K yellow gold triple-sealed waterproof screw-down crown with Rolex logo
Automatic 4030 Zenith movement 
The production period of this model is from 1989 to 2000.

Rolex - Cosmograph Daytona Zenith Movement Ref. 16523

  • Brand: Rolex
    Model: Oyster Perpetual Cosmograph Daytona Zenith Movement
    Reference Number: 16523
    Movement: Automatic
    Condition: Excellent-new old stock
    Gender: Men’s
    Time Period: 1983 
    Box: Yes
    Papers: No

    Caliber: 4030
    Jewels: 31

    Case Material: Stainless steel
    Case Diameter: 40 mm
    Thickness: 12.5 mm
    Waterproof: 100 ft./ 30 m./ 3 ATM
    Bezel Material: Fixed 18K yellow gold engraved Cosmograph tachymeter scale
    Glass: Sapphire Crystal
    Caseback: Solid
    Dial: Sunburst champagne stick dial with black outer sub-dial rings 
    Dial Numerals: 18K yellow gold applied baton with luminescent coating baton hour indices, minutes and 1/5 seconds divisions scale around the outer rim

    Bracelet Material: 18k yellow gold and stainless steel Oyster
    Buckle: Crown folding 
    Buckle Material: Stainless steel

    Hour, minute and seconds hands, chronograph hand accurate to within 1/8 of a second, column wheel, chronograph sub-dials counters 60-second at 9 o'clock, 30-minute at 3 o’clock and 12-hour at 6 o’clock, tachymeter counter on the bezel, 54-hour power reserve

  • Self-winding movement, bi-directional winding, Breguet hairspring, Chronometer certificate (COSC), Stone lever escapement, Yoke winding system, Glucydur balance wheel with microstella screws, Kif shock protection for balance wheel and escape wheel
    Adjusted to heat and five positions, monometallic balance, shock absorber
    This mechanism oscillates at the frequency of 28,800 vph (4 Hz).
    Serial # 791****
    Case, dial, and movement are signed.
    Introduced in 1963 as a sports companion for professional race car drivers, the Daytona comes equipped with a Tachymeter alongside the sub-dials to calculate speeds of up to 400 kilometers per hour. 

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