[bullosa]

The Ball Cal 9018 (base ETA 2892-A2) is fitted to the EM II Diver TMT and EH TMT Titanium. It is a 25 jewel, 28800vph movement with a power reserve of 42 hours.

 

[scottw44]

The Ball Cal 9018 (base ETA 2892-A2) is fitted to the EM II Diver TMT and EH TMT Titanium. It is a 25 jewel, 28800vph movement with a power reserve of 42 hours.

The 2892 A-2 base is a 21 jewel movement. So are their 4 additional jewels added by Ball? If so, what do the help achieve? Is it for the thermometer?

tia,

scott

 

[bullosa]

Yes, Ball added the jewels to the movement.

 

[scottw44]

Yes, Ball added the jewels to the movement.

thanx again...