Movement details: Manual winding movement; Diameter 31 mm, height 4.78 mm, 20 jewels, 3 of which are set in screw-mounted gold chatons. Screw balance with weighted screws and 4 regulating screws in slotted, threaded holes. Index-free oscillating system with Breguet hairspring, openworked balance cock, Glashütte three-quarter-plate; 21,600 vph. Power reserve when fully wound 65 hours.

Functions: Hour, minute, small seconds.

Case details: Water-resistant 5 atm. Domed sapphire crystal anti-reflective. See-through back with sapphire crystal.