question about twinlock crown and tube in Red Sub 1680s

[g-boac]

Question - the following thread included several posts along the way stating that the twinlock crown and tube are correct for an early Red Sub 1680:
http://www.rolexforums.com/showthread.php?t=375371

To be clear, are the twinlock crown and tubes used in Red Subs, the same twinlock crown and tubes (24-700 crown / 24-7000 tube) used in similar-era 5513 and 5512 meters first no-date Subs?

thanks!