MODEL | Vintage Tachydate |
Limitation | 58 pieces |
Ident No. | 107342 |
MOVEMENT | |
Calibre | MB M16.32 |
Movement type | Manually wound monopusher chronograph |
Chronograph | Monopusher chronograph mechanism with column wheel and horizontal coupling |
Indications | Central hours and minutes, seconds at 9 o’clock, date at 6 o’clock |
Displays (Chronograph) | Central seconds, 30-minute counter at 3 o’clock, tachymeter scale |
Diameter | 38.40 mm |
Height | 7 mm |
Number of components | 268 components |
Number of jewels | 22 jewels (hemispherical, cambered, olive-cut) |
Power reserve | Approx. 50 h |
Balance | Screw balance, Ø 14.5 mm; 59 mg.cm2 |
Frequency | 18,000 vibrations per hour (2.5 Hz) |
Balance spring | With Phillips curve |
Plate | Rhodium-plated German silver, circular-grained on both sides, hand-chamfered edges |
Bridges | Rhodium-plated German silver, “Côtes de Genève”, recesses circular-grained on both sides, hand-chamfered edges |
Going train | Wheels: gold-plated, circular-grained, chamfered, diamond hubs on both sides Pinions: polished faces and toothing, burnished pivots |
CASE | |
Material | 18K red gold |
Bezel | – |
Sapphire crystal | Cambered sapphire crystal |
Case Back | Sapphire crystal case back |
Crown | Integrated chronograph button with Montblanc emblem in mother-of-pearl |
Dial | Solid 18K gold grained “argenté” dial |
Hands | Blued stainless steel, red chronograph hand |
Horns | – |
Diameter | 43.5 mm |
Height | 13 mm |
Water resistant | 3 bar (30 m) |
STRAP | |
Material/Colour | Hand-stitched alligator-skin / Brown |
Clasp/Buckle | Pin buckle in 18K red gold |