There is no such position as "reactor watch officer". There are engineering officers and they come in many classes.
From "The Naval Officer's Guide", 1998.
The Naval Officer's Guide - William P. MacK, Harry A. Seymour, Jr., Lesa A. McComas - Google Books
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Assistants to the reactor officer may include the reactor-control assistant, the reactor mechanical assistant, and the reactor watch officers.
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Seriously, give it up. You're embarrassing yourself. But if you want to keep going, we can make a wager about it. $10k, in escrow with an overseas betting firm, who will also act as judge. Then I'll post my DD214. Put up or shut up.