How did the watchman get to his post on the mast?

[Captain Puckett]

I don't see anything that would help to get up there.

 

[Seumas]

Lookout not watchman.

The two lookouts did not climb the rigging. The mast was hollow and had a ladder inside it. You simply climbed up the ladder to the crow's nest.

 

[Steven Christian]

If you look at the various pics in the link below you can see the hatches that the lookouts would access to go up to the crowsnest. Second link shows inside from a simulation. Cheers.

crowsnest on titanic at DuckDuckGo

DuckDuckGo. Privacy, Simplified.

duckduckgo.com

https://78.media.tumblr.com/05d7d8f9d499807191d2fefff9fe0f60/tumblr_mk3r6mj9Li1rnh1c7o1_1280.jpg?.jpg