Chapter 1, Page 9, Panel 8
On the sign outside of Hollis Mason's repair shop, a happy-go-lucky sign reads "we fix 'em! Obsolete models a specialty." This sign alludes not only to the older Minutemen, who became obsolete in 1960 when Dr. Manhattan came into existence, but also now to the "Watchmen", or the new group of now-retired costumed heroes. Gibbon's inclusion of this allusion is a point toward the fact that eventually, everyone will become obsolete as someone or something new will replace them.