Bill
32112
Sinn U1000 4 sure
I have one and it is supposed to be operable at depth. I can only confirm it is on the surface of the water i.e shallow water.
Their site claims it has been tested at depth.
Water Resistance
Next,
a discussion of water resistance. This watch represents a breakthrough
on the testing of chronograph functions at great depths. The watch is
not only rated water resistant to 1,000 meters, the pushers and other
chronograph functions have also been tested to that depth. Each Sinn
U1000 watch ships with a certificate from the international testing lab
Germanischen Lloyd certifying these tests.
Sinn has developed a
special system of double Viton® seals and other engineering processes
to achieve this certification. While building a 1,000 meter dive watch
is not in itself unique, building a diver's chronograph whose functions
have been tested at that depth is an achievement.
Plus -
I have the Panerai 187 1000m chrono but you have to unscrew a device around the pusher so it not practical with diving gloves but the U1000 looks like it may fit the bill.
Bill
Which mechanical chronograph can be operated under water?
Some off the top of my head
And Let's Not Forget Blancpain
Parmigiani's new Pershing chrono
