Daytona - Which is the preferred movement

[2th Dr]

Although the Zenith Daytona is "vintage", I'd still prefer the newer Rolex movement, plus I like the look of the newer Daytona.

[Z-Sub]

Overall, I prefer the newer one, especially the black dial.
The one thing I like more about the 16520 white dial is the darker color of the sub dial rings. It's better contrast and reads easier. otherwise, the newer bracelet also adds better feel to the 116520.

[hennabav]

I don't know much about movements but I do like the Zenith dials much more than the current SS dials. In terms of precision, probably the Rolex 4130 is more accurate.

[Yazo]

Originally Posted by Tylden Reed

Yazo. Hi.
Thanks for supplying the report on the movements. A well balanced piece. Having been required to change a mainspring in a 4130 - I love it. So simple and quick. Only have to remove a few screws to get the barrel out rather than strip-down the movement on the old Zenith variant. BTW. I've a really good set of booklets by Wm. O Smith of Western Pennsylvania Horological Institute Inc. c1950 on proceedures required when servicing chronographs and the Rolex perpetuals of the period (9 3/4"' and 10 1/2"'). One make/cal per volume. The 'Esembl-O-Graf' booklets have many illustrations and descriptions of proceedures. One vol. gives the proceedures and times required to change the mainspring of a chronograph - bearing in mind we are looking at non-automatic movements the shortest time required is 45 mins. and the longest is 1 hr. 20 min. I wonder if there are many sets of these booklets still around - hope so. Mine still has its outer box. Again, thanks Yazo. Tylden.

[jnmarshall]

Funny how in the posted article of this thread comparing the two, the newer movement is listed as being "easier to service". HOWEVER Rolex seems to charge the same price for both movements. So from an ownership cost/experience the scores should be equal.

[Casey VP-26]

As requested The article is Rolex Cosmograph Daytona With Manufacture Caliber. WatchTime Magazine February 2001 Page 32 . SorryFolks

[Tools]

Originally Posted by Casey VP-26

The Random House Dictionary, College Edition. elastic 1. capable of returning to its original length,shape,etc. 2 3 4 5 Does not apply 6. webbing, or material in the form of a band, made elastic with strips of RUBBER.

Yes.. as said.. elastic is an adjective used in the physics of materials and not a noun interchangeable with rubber..

Rubber is elastic (it holds it's shape)...something that is elastic is not always rubber..(the clickspring on a bezel is elastic as is the metal spring that holds the clasp shut in new models.)

All metals have what is referred to as "Modulus of elasticity", and so an "elastic band" can be as much metal as it could be rubber..

"elasticity"
In physics, the ability of a solid to recover its shape once deforming forces are removed. An elastic material obeys Hooke's law, which states that its deformation is proportional to the applied stress up to a certain point, called the elastic limit; beyond this point additional stresses will deform it permanently. Elastic materials include metals and rubber; however, all materials have some degree of elasticity.