Mido Multifort TV Big Date Gains COSC Chronometer Certification
Mido upgrades its Multifort TV Big Date with a COSC-certified Calibre 80 movement. The watch is priced at CHF 1,350.

Mido has introduced a new Multifort TV Big Date watch featuring a COSC-certified Calibre 80 automatic movement. This marks the first chronometer-certified model in this collection, which was revived in 2023. The watch is available now from Mido retailers, priced at CHF 1,350 or EUR 1,550, with a US equivalent of $1,650.
Technical Specifications and Design
The watch features a 40mm wide by 39.2mm long stainless steel case with a lug-to-lug distance of 46.85mm. Surfaces are a mix of brushed and polished finishes. It offers 100 meters of water resistance with a screw-down crown and screw-secured caseback. The sapphire crystal has an anti-reflective coating on both sides.
The dial has been redesigned with a sunray-brushed blue or dark grey monochromatic color scheme. A rectangular checkerboard pattern forms the base. Diamond-cut faceted hands and applied indices are filled with Super-LumiNova. The large double-digit date display sits at 12 o'clock, now framed, with a sandblasted dot above it as a defining feature. A minutes/seconds track occupies the stepped flange, with double-digit numerals marking 5-minute intervals.
| Specification | Detail |
|---|---|
| Case Width | 40mm |
| Case Length | 39.2mm |
| Thickness | 11.5mm |
| Lug-to-Lug | 46.85mm |
| Case Material | Stainless Steel |
| Water Resistance | 100m |
| Crystal | Sapphire with anti-reflective coating |
| Dial Colors | Sunray Blue, Dark Grey |
Movement and Functionality
Power comes from a COSC-certified Calibre 80 movement, based on the Powermatic family. It runs at 21,600 vibrations per hour and provides an 80-hour power reserve. A key technical upgrade is the inclusion of a Nivachron balance spring. This enhances resistance to magnetic fields, shocks, and temperature variations. The movement is visible through a transparent screw-down caseback. Decoration includes blued screws, Côtes de Genève on the oscillating weight, and a visible Mido logo.
Bracelet and Strap Options
The watch comes on an integrated stainless steel bracelet. It features satin-brushed outer links and polished center links. A push-button deployant clasp secures it to the wrist. Quick-release spring bars are fitted, allowing for easy swapping to separately available straps.
Availability and Pricing
The Multifort TV Big Date Chronometer is available for purchase immediately. The watch is available now from Mido retailers.





