WATCH MATERIAL INTERCHANGE LIST
 173.20.10
 LOWER UNIT H10
 
 Price Each $  12.20
 
 ETA 2800  21,600 BPH DSS
 ETA 2802  21,600 BPH DSS CALENDAR W/CORRECTOR
 ETA 2803  21,600 BPH DSS CALENDAR W/CORRECTOR
 ETA 2808  21,600 BPH DSS CALENDAR DAY-DATE W/CORRECTOR
 ETA 2809  21,600 BPH DSS CALENDAR DAY-DATE W/CORRECTOR
 ETA 2820  21,600 BPH DSS STOP SEC. AUTO
 ETA 2822  21600 BPH-DSS-AUTO-CALD W/CORR
 ETA 2823  21,600 BPH-DSS-AUTO-CAL-W/CORR
 ETA 2828  21600 BPH-DSS-AUTO-CALD. W/CORR
 ETA 2829  21,600 BPH-DSS-AUTO-CAL-DAY-DATE W/CORRECTOR