TISSOT T-CLASSIC T-ONE GENT AUTOMATIC 38.5 MM MEN WATCH T038.430.16.057.00

The original Tissot-era catalog data is particularly useful here: it lists the case as 38.5 × 37 mm, rather than simply calling it 37 or 39 mm. A current authorized retailer also gives 38.5 mm and 37 mm lug-to-lug.

Movement: ETA 2834-2

The watch uses the ETA 2834-2, a well-known Swiss automatic movement. It is essentially a day-date version of the ETA 28xx family.

Key specifications:

• Caliber: ETA 2834-2
• Type: Automatic mechanical
• Diameter: 29 mm
• Height: 5.05 mm
• Jewels: 25
• Frequency: 28,800 A/h / 4 Hz
• Power reserve: roughly 38–40 hours
• Day display: Yes
• Date display: Yes

The movement is a fairly conventional, serviceable Swiss automatic rather than an exotic or highly decorated caliber. The 4-Hz frequency gives the seconds hand a relatively smooth sweep.

Case and dimensions

The 9.8 mm thickness makes it reasonably slim for an automatic day-date watch, so it should work well as a dress/casual everyday watch.

Dial and design

• Black dial
• Silver-tone hands and markers
• Combination of Arabic numerals/index markers depending on the dial description
• Day/date calendar
• Round polished/brushed stainless-steel case
• Black leather strap
• Sapphire crystal
• Transparent caseback

Water resistance

It is rated at 50 m / 5 ATM. This is suitable for:

• Rain
• Hand washing
• Everyday accidental water exposure