[Bulova] My first Accutron! 2182 N4, "Up-Down Date." Needs a new band though... : r/Watches
Bulova Accutron N4 — Patinated Watch
Vintage Bulova N4 Accutron 2302 Date Watch Movement Parts Repair Doesn't Work | eBay
File:Vintage Bulova Accutron 218 Men's Electric Watch, Yellow Gold Case With Rolled Gold Back, N4 Date Code On Back For 1974 Production (14717949892).jpg - Wikimedia Commons
Vintage Bulova Accutron ref N4 Men's Watch Movement CASE ONLY Parts & Repair | eBay