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Omega Speedmaster Day-Date 3221.30.00 (Omega Men’s Speedmaster Day-Date Automatic Chronograph Watch #3221.30.00)

Silver Dial Day Date Month Feature Chronograph Function Self Winding Automatic Movement Caliber: Omega 3606 Power Reserve: 44 Hours Brushed with Polished Steel Case & Bracelet Scratch Resistant Sapphire Crystal 100 Meters / 330 Feet Water Resistant 40mm Case Deployment Buckle Luminescent Hands and Markers.

Omega Speedmaster Day-Date 3221.30.00 (Omega Men’s Speedmaster Day-Date Automatic Chronograph Watch #3221.30.00)

How to Use a Tachymeter
A tachymeter is an instrument for measuring speed. It is a chronograph with a graduated dial on which speed can be read off in kilometers per hour based on 1000 meters distance. For example, the chronograph indicates that the distance of one kilometer has been covered in 30 seconds. The corresponding point on the tachymeter scale indicates 120, and thus the speed is 120km per hour.

Omega Speedmaster Day-Date 3221.30.00 (Omega Men’s Speedmaster Day-Date Automatic Chronograph Watch #3221.30.00)

Omega Speedmaster Day-Date 3221.30.00 (Omega Men’s Speedmaster Day-Date Automatic Chronograph Watch #3221.30.00)

Omega Speedmaster Day-Date 3221.30.00 Features

• Precise Swiss Automatic movement; Functions without a battery; Powers automatically with the movement of your arms
• Functions without a battery; watch powered automatically with the movement of your arm
• Domed, anti-reflective scratch-resistant sapphire crystal
• Stainless-steel case; White dial; Day-date-month functions; Chronograph functions; Tachymeter function
• Water-resistant to 330 feet (100 M)

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