Tudor Oysterdate Chronograph Big Block 79170The Panda Big Block Powerhouse on your wrist The Tudor Big Block was an exciting piece for Tudor as it was the first automatically wound chronograph from the WIlsdorf stable a full decade ahead of the reference 16520 Rolex Daytona. In our feel it has one of the nicest case sizes and wrist fun for the money. This example houses a classic Panda dial, which is sliver with black sub registers. The dial remains in great condition and all the lume plots are