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Is the Pam 564 Titanium much lighter?

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nalomb

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I just weighed my 564 and it came in at 3 3/8 ounces or just under 100 grams. Compared to another bettarini case in stainless steel, that number is 4 3/8 ounces or 126 grams.

Bottom line is that there is a 20% difference in weight -- how that translates to the wrist, is rather subjective. I feel the titanium cases are lighter than the weight difference would otherwise indicate ...
 
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mech500

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Titanium has a density of 4.5g/cc.

Stainless steel has a density of 7.7g/cc.

Therefore, with all else being equal, a block of stainless will weigh x1.7 more than a titanium block (of same geometry).


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mysterio

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mech500 said:
Titanium has a density of 4.5g/cc.
Stainless steel has a density of 7.7g/cc.
Therefore, with all else being equal, a block of stainless will weigh x1.7 more than a titanium block (of same geometry).
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Click to expand...

Steel does not weigh 1.7x more than titanium. It will just weigh either 70% more or 1.7x (you can't use both). Considering at least half of the weight would be in the movement (let's disregard the crystal and dial for the meantime) and its weight would be due to its mostly steel construction, if two watches have the same movement, the titanium watch will weigh 80% of the steel watch. If the movement weight is 70% of the watch, the weight ratio goes up to 87%.of the steel watch weight.
 
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mech500

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mysterio said:
Steel does not weigh 1.7x more than titanium. It will just weigh either 70% more or 1.7x (you can't use both).
Click to expand...

Not sure what your point is mate. Who is “using both?”

I was talking about the density of stainless being x1.7 higher than titanium....which is true. Density is directly proportional to mass. So if you double density you double mass (for a fixed volume/geometry).
 
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mysterio

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mech500 said:
Not sure what your point is mate. Who is “using both?”

I was talking about the density of stainless being x1.7 higher than titanium....which is true. Density is directly proportional to mass. So if you double density you double mass (for a fixed volume/geometry).
Click to expand...

To clarify my statement, a piece of titanium weighs 1g. A piece of steel with the same mass should weigh 1.7g, correct?

1.7x of 1g is 1.7g [correct]
70% more than 1g is 1+0.7 (1) = 1.7g [correct]
1.7x more than 1g is 1+1.7(1) = 2.7g [incorrect]

That is my point. :)
 
SuperLory

SuperLory

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Mysterio I’m really not good with numbers but your maths are flawed there.

If one is x1.7 higher, it’s 1x1.7 not 1+1.7
 
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mech500

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mysterio said:
To clarify my statement, a piece of titanium weighs 1g. A piece of steel with the same mass should weigh 1.7g, correct?
Click to expand...

Incorrect

“a piece of steel with the same mass” will have the same weight/mass as a piece of titanium. Lol

Similarly a tonne of feathers weighs the same as a tonne of lead.

But a full stainless steel mid-case has x1.7 mass of a full titanium mid-case (dimensions equal)
 
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mysterio

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SuperLory said:
Mysterio I’m really not good with numbers but your maths are flawed there.

If one is x1.7 higher, it’s 1x1.7 not 1+1.7
Click to expand...

I'm really good with numbers, but It's not even mathematics, it's English. X times as many versus X times more than. 2x as many does not equal 2x more than. Steel is 1.7x as heavy as an equivalent volume of titanium. It is not 1.7x heavier (more than).

mech500 said:
Incorrect

“a piece of steel with the same mass” will have the same weight/mass as a piece of titanium. Lol

Similarly a tonne of feathers weighs the same as a tonne of lead.

But a full stainless steel mid-case has x1.7 mass of a full titanium mid-case (dimensions equal)
Click to expand...

I misspoke it should not have been mass, it should have been volume. But a ton of gold weighs different from a ton of feathers (I read that somewhere).
 
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Rufctr2

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To comeback to the subject the gen 564 has a white second hand instead of this silly black second hand... :/

But i had one and it’s a great rep. I would advice you to find a pam177 which is more accurate.
 
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tr573

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A ton of gold is indeed heavier than a ton of feathers (or lead or bricks)
 
Tucker

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