| MODEL | Montblanc Nicolas Rieussec Open Home Time |
| Ident No. | 107068 |
| MOVEMENT | |
| Calibre | Montblanc MB R210 |
| Features | Monopusher chronograph with automatic winding, Column-wheel control and vertical disc clutch, 13 3/4”’ (31 mm), height 8.46 mm, 323 parts, large balance wheel with screws (moment of inertia: 12 mg.cm2, diameter: 9.70 mm), flat hairspring, rhodium-plated and circular-grained plates, rhodium-plated bridges with Geneva striping, wheel train with special toothing for more efficient power transmission |
| Indications | Off-centre hour – minute hands, date display |
| Complications | 30 min. and 60 sec. counters with rotating discs, second time zone by disc with day and night display |
| Battery | – |
| Power Reserve | Approx. 72 hrs |
| Frequency/Jewels | 28,800/h, 40 jewels |
| CASE | |
| Material | Stainless steel |
| Bezel | Fixed |
| Sapphire Crystal | Domed sapphire crystal with double anti-reflective coating |
| Case Back | Sapphire crystal case back |
| Crown | Non-screw crown, 1 O-ring |
| Dial | Silver-coloured “grain d’orge” guilloché dial with black numerals on applique hour circle |
| Hands | Blued steel feuille and baton hands, luminescent hour and minute hands |
| Distance between horns/clasp | 22/20 mm |
| Diameter | 43 mm |
| Height | 15 mm |
| Water resistant | 3 bar (30 m) |
| BRACELET/STRAP | |
| Material/Colour | Stainless steel bracelet |
| Clasp/Buckle | Triple-folding clasp |
