Rolex
Cosmograph Daytona
m116515ln-0041

On this page you can read about Rolex model Cosmograph Daytona m116515ln-0041. All the technical specifications like case material, case diameter and calibre attributes like movement type, power reserve etc. are listed here in an easy to understand tabular format. There are also images of Cosmograph Daytona m116515ln-0041. At the bottom of the page you can find similar watches from Rolex.

Important facts

The Rolex Cosmograph Daytona m116515ln-0041 has a screw-down crown which ensures a much better water resistance by providing a tighter seal between the crown and the case. This keeps moisture or dust from entering the watch case, which could otherwise cause damage to the movement. This also helps to prevent accidental adjustment of the time or date. The screw-down feature makes it more difficult for the crown to be accidentally turned, reducing the risk of incorrect timekeeping. Also, it is a reassuring feel to tighten the crown by screwing it down.

This watch has an automatic mechanical movement, which stores power in a mainspring, that is wound by an oscillating rotor while the watch is being worn. A mechanical watch movement is less accurate than a quartz one and requires regular servicing. It does not need a battery though and has a smoother sweeping seconds hand.

This timepiece has a sapphire crystal which provides a durable and clear viewing surface for the dial. This type of crystal is highly resistant to scratches and does not discolor over time. Sapphire is also resistant to most chemicals and less likely to shatter compared to other materials, making it a safer choice for the watch wearer. Thefore sapphire is a good choice for high-end wristwatches. It is of course an expensive option, compared to other materials, like plexiglass.

The Cosmograph Daytona reference m116515ln-0041 is a chronometer, certified by COSC, the Official Swiss Chronometer Testing Institute. The testing involves a series of measurements over a period of 15 days in different positions and temperatures to ensure the watch's accuracy.

The Rolex Cosmograph Daytona m116515ln-0041 has a chronograph complication, which is a function that allows the user to measure elapsed time, independent from the regular time. It is started and stopped by the press of a button, usually found on the side of the watch case. The elapsed time is displayed by hands on the sub-dials, and can be used to measure events like race times, cooking times, or similar where a precise measurement of elapsed time is needed. The chronograph is one of the most complex complications but also one of the most useful ones and arguably makes the watch look rather cool.

Technical specifications

anti magnetic	hairspring
bezel color	black
bezel material	ceramic
case back locking	screw down
case diameter	40
case material	rose gold
case material	rose gold18ct
clasp type	folding
dial color	brown and black
divers extension
front crystal material	sapphire
lume
manufacturer case name	oyster
manufacturer cert	rolex
screw down crown
strap material	rubber
tachymeter
water resistance meter	100

Calibre specifications

beat rate	28800
bidirectional winding
calibre in house
calibre no	4130
calibre precision minus	2
calibre precision plus	2
calibre type	mechanical
center seconds
chronograph
chronograph12 hour
chronograph30 min
chronometer	cosc
hackable
power reserve	72h
small seconds
subdials
winding mechanism	automatic