7 lines (6 with data), 248 Bytes

e057a 0 128 0 10:50:00 09/12/1987
# Start time=10:50
# First beat=11:38:54.546
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.429,  <RR-high-limit(sec)>: 0.984
# Note: reel-to-reel recording, not flutter-compensated