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Brand: SeikoModels: Automatic Chronograph 50th Anniversary Limited Edition (SRQ029); Chronograph 55th Anniversary Limited Edition (SRQ031)Reference Numbers: SRQ029 and link SRQ031Diameter: 41.0mm (SRQ029); 42.3mm (SRQ031)Thickness: 16.0mm (SRQ029); 15.3mm link (SRQ031)Case Material: Stainless Steel Water Resistance: 100 metersStrap/Bracelet: Stainless steel case and bracelet with super-hard coating (SRQ029); Stainless link steel case with super-hard coating and cordovan strap (SRQ031)
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I'm not going link to bore you with a full specs run-down of each generation of Apple link Watch, but here is a look link at how each of the five generations changed and the biggest new features that each has brought to the table.
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The known watches have all come to market somewhat recently and scholarship on these has been evolving. On all three, the reverse of the dial is signed in a similar fashion by Beyeler, a Rolex dial supplier of the link time, leading to the theory that they all belong to the same, link presumably small, batch and were produced at the same time. This case, dating link to 1976, is the earliest known so far but the others date to just a few years later.
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