Rolex, Daytona Zenith Movement, Ref. 16518

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SPECIFICATIONS


Brand: Rolex
Model: Oyster Perpetual Cosmograph Daytona Zenith Movement
Reference Number: 16518
Movement: Automatic
Condition: Very good 
Gender: Men's
Time Period: 1994
Box: Yes
Papers: No

THE CALIBER

Caliber: 4030
Jewels: 31 

THE CASE

Case Material: 18K yellow gold
Case Diameter: 40 mm
Thickness: 13 mm
Waterproof: 100 ft./ 30 m./ 3 ATM
Bezel Material: Fixed 18K yellow gold engraved Cosmograph Tachymeter scale
Glass: Sapphire Crystal
Caseback: Solid
Dial: White with black outer sub-dial rings 
Dial Numerals: Arabic numeral and yellow gold applied with luminescent coating hour indices, railway track minutes/second scale around the outer rim

THE BRACELET / STRAP

Bracelet Material: Brown Leather
Buckle: Flip-Lock folding 
Buckle Material: 18K yellow gold

THE FUNCTIONS

Center hour, minute, and seconds hands, chronograph (center hand) accurate to within 1/8 of a second, chronograph sub-dials counters 60-second at 9 o'clock, 30-minute at 3 o'clock, and a 12-hour register at 6 o'clock, Tachymeter counter on the bezel, 54-hour power reserve.


FURTHER READING


Introduced in 1963 as a sports companion for professional race car drivers, the Daytona comes equipped with a Tachymeter bezel alongside the sub-dials to calculate speeds of up to 400 kilometers per hour.

Tonneau-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 solid screw-down, brushed case back, screw-down chronograph pushbuttons, and a Triplock winding crown with a Rolex crown engraved, protected by the crown guard
Solid three-body case, curved lugs, and flat angled bezel with tachometer graduation to 400 UPH are polished/brushed

THE MOVEMENT

The ref. 16518 has a mechanical automatic self-winding Zenith El Primero caliber 4030 (Zenith base 400)It'sement. It's rhodium-plated, with oeil-de-perdrix embeIt'shment. It's constructed with 31 jewels, a blue Parachrom hairspring, an Incabloc shock absorber device, and a straight-line lever escapement. It includes a monometallic balance adjusted to temperatures and five positions, a self-compensating free-sprung Breguet balance spring, and Microstella regulating screws.
This mechanism oscillates at a frequency of 28,800 vph (4 Hz).
S Serial 

THE SET

This certified vintage timepiece is in very good condition and comes with a Rolex presentation box, and is covered by Twain Time 12-month limited warranty.