Polished 1/4 key wind movement (ZW3, permanent NA, SEK) with escapement (11 jewels)
and triple chime (Westminster, St. Michael & Whittington) on 8-rod gong
(120/140 mm, bottom hammer, brass with bronce rods,
base mounting, basic height 93 mm), dial Z7a with false plate & pillars, polished brass hand nut J,
Brequet style hands X2a X2d, completely assembled