Ed. W

Perhaps some type of non-Daytona Chronograph and as other have said, cyclops Sea-Dweller? Perhaps the white suggests a ceramic watch?

this as nothing more than a rumor. I just don't see Apple being interested in combustion engines or such a niche area.

will yield plenty of forum answers. And also yes, don't replace or repair any external parts (dial, case, crown, hands, etc.)

I keep seeing 4.2 mm but also reports of 5.5 mm (for both the solid and display back...) Also I just noticed the ref may be different after all: Solid back is 145.8.79 and display is 145.8.79.s

if you look at what happens to them after Bvlgari acquired the names, sadly, you may see what could happen... Daniel Roth watches often go unnoticed on auction sites and the new pieces are not close to the level of innovation the brands had before.

However, my particular example was 39mm which was very good for my 6.25 inch wrist. The dial is interesting but I think it's a matter of taste, the 273 and 181 have plain dials which I think suit the overall sober characteristic of the watch better...

and finally non-modular like the Cal 39 chronos were.

Now I know where it went!

but weight is a product of dimensions (height and diameter) and material (Steel, 18k, Platinum) as well as construction (hollowed lugs, sapphire vs solid back). With that information finding a similar sized, same material watch should give you a good...