The Tissot caliber 2045 is a manual-winding mechanical movement from the early to mid-1950s, part of Tissot’s earlier generation of compact and reliable calibers designed for time-only wristwatches. As one of the brand’s lesser-known movements, the 2045 was built during a period when Tissot emphasized mechanical durability, antimagnetic performance, and straightforward serviceability, making it ideal for everyday wear in a post-war market.

Overview of the Tissot Caliber 2045

The caliber 2045 is most often found in small-to-medium wristwatches, with case diameters ranging between 30 mm and 34 mm, targeting both men and women depending on the design. These watches usually featured:

• Manual winding

• Central hour and minute hands

• A small seconds subdial at the 6 o’clock position

Watches using this caliber were commonly part of the Tissot Antimagnetique series, a hallmark of the brand’s mid-century offering that promised protection against magnetic interference—important at a time when such exposure could easily disrupt mechanical watches.

Technical Specifications

• Type: Manual-winding

• Functions: Hours, minutes, small seconds

• Jewels: 15

• Frequency: 18,000 vibrations per hour (2.5 Hz)

• Power Reserve: Approximately 40 hours

• Diameter: Approximately 27 mm (12 lignes)

• Height: ~4 mm

• Shock Protection: Not standard in early versions; later examples may include basic protection like Incabloc

• Finish: Functional Swiss industrial style with matte bridges, often stamped "Tissot" and equipped with polished or blued screws

The movement layout is straightforward, using a Swiss lever escapement, traditional gear train, and a compact small-seconds wheel train beneath the dial.

Maintenance and Servicing

As with all vintage mechanical calibers, the Tissot 2045 should be serviced every 4 to 6 years. These movements, though robust, can suffer damage if run dry or exposed to moisture or impact.

A typical full service includes:

1. Complete disassembly of the movement

2. Ultrasonic cleaning of all components

3. Inspection for wear—especially on the mainspring, gear pivots, and balance staff

4. Replacement of worn parts, often via donor movements

5. Lubrication with modern oils

6. Reassembly and regulation

7. Case and crystal cleaning, with gasket replacement (if applicable)

Because this is a manually wound vintage movement, experienced watchmakers can restore it easily, but availability of parts may require sourcing donor watches.

Common Wear Points

• Mainspring barrel may lose torque or develop wear

• Balance pivots and jewels are susceptible to shock damage and wear from old oil

• Small seconds wheel and pinion may show gear tooth wear due to continuous operation

• Stem and crown are frequently worn due to regular hand-winding

• Keyless works (setting and winding system) may loosen over time

Still, the movement is well-built and performs reliably after proper servicing.

Use and Handling Tips

• Wind daily, stopping when light resistance is felt—avoid over-winding

• Avoid water exposure—even if the case is stainless steel, early gaskets offer little protection

• Keep away from magnetic fields to preserve timekeeping

• Store face-up in a dry, cushioned watch box, especially if not worn regularly

Collectibility and Appeal

While not a rare movement, the Tissot 2045 has charm for vintage watch collectors and enthusiasts who appreciate:

• Mechanically simple and durable design

• Authentic mid-century Swiss watchmaking

• Antimagnetic heritage in Tissot’s historical lineup

• Elegant, time-only functionality in slim, classic cases

It also provides an affordable opportunity for those entering the world of vintage Swiss watches.

Conclusion

The Tissot caliber 2045 is a modest yet reliable hand-wound movement from a golden age of Swiss horology. Though overshadowed by more famous calibers, it played a vital role in Tissot’s post-war expansion. With regular servicing and careful handling, this movement continues to offer vintage appeal, mechanical satisfaction, and everyday usability—a fine testament to Tissot’s enduring legacy in mechanical watchmaking.