Breitling has always innovated and created unique pieces for the extreme conditions. The wach is in great unpolished condition, with about 7-7.25 inches wide bracelet. It works well and its rare yellow dial is very visible.
 
Make: Breitling
Model: Emergency 121.5 Mhz
Reference: E56121
Year: Around 2000
Material: Titanium
Dimensions: 43mm
Crystal: Sapphire Glass 
Movement: Quartz
Bracelet/Strap: Titanium
Lug Width: 22mm
Box/Papers: No/No