Hello everyone, excited to join the forum as this is my first post. Came by this relatively fresh 1970 Deep Sea Chronograph B recently and had to buy it. Sits well on the wrist, case/movement are almost NOS and it keeps good time. Big fan of the venerable Valjoux 7733. Could use the forum's help on two items - the majority of the watch is orginal, from what I can tell, other than the crown and maybe the hour/minute hands. 1) Does the forum know the part number for the correct crown? I've looked online and on eBay and there are a couple people sellling NOS crowns. Hoping to buy a replacement crown with the appropriate Bulova signature. 2) The hour and minute hands are driving me crazy. From what I can tell based on other examples of the Deep Sea B mine might be replacements, but I cannot confirm. Based on some old adverts however, these seem to be the original hands. If anyone has thoughts on this, please let me know. The patina has aged to the same shade as the hour indicators, so I'm inclined to think that the hands are at the very least NOS replacements from the same time-period. Thanks for all the help and look forward to continued discussions.