TISSOT T-CLASSIC LE LOCLE AUTOMATIC 39 MM MEN WATCH T006.408.36.057.00

The important part: COSC certification

This isn't simply a standard Le Locle with an ETA 2824-2. T006.408.36.057.00 is the chronometer version, with the ETA 2824-2 movement supplied/regulated to COSC chronometer standards. Contemporary descriptions specifically identify the caliber as COSC-certified.

That's significant because the ETA 2824-2 was produced in different grades. A COSC-certified example represents a substantially more tightly regulated movement than an ordinary 2824-2.

The watch also has an unusually interesting history: it was introduced around 2012, and sources connect this Le Locle Chronomètre to Tissot's participation and success in the Concours International de Chronométrie.

Case and appearance

The case is 316L stainless steel with rose-gold PVD coating, giving it the warm rose-gold appearance without being a solid-gold watch. The black dial creates a fairly striking contrast with the rose-gold-colored case and hands.

The dial is one of the more distinctive aspects of the watch:

• Black background
• Textured/guilloché-style central section
• Rose-gold-tone applied markers
• Arabic numerals at 12, 3, 6 and 9
• Leaf-shaped hands
• Central seconds hand
• Date window at 3 o'clock
• Minute track around the perimeter

At 39.3 mm, it is also a fairly versatile size for a traditional dress watch—large enough to look contemporary but not oversized.

Movement: ETA 2824-2

The ETA 2824-2 is one of the most famous Swiss automatic movements. In this watch it operates at 28,800 vibrations per hour (4 Hz) and has 25 jewels. The commonly quoted power reserve is approximately 38 hours.

It provides:

• Hours
• Minutes
• Central seconds
• Date
• Automatic winding
• Manual winding capability
• Hacking seconds
• 4-Hz balance frequency

The display caseback allows you to see the movement.

Water resistance

The rating is only 30 m / 3 ATM. That means this is primarily a dress/everyday watch—not a swimming or diving watch.