7 lines (6 with data), 247 Bytes

e189a 0 128 0 10:43:00 16/09/1988
# Start time=10:43
# First beat=10:50:23.585
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.46,  <RR-high-limit(sec)>: 1.062
# Note: reel-to-reel recording, not flutter-compensated