Astral

4 rules to select the right watch size.

Case diameter

1. Our watches are generally large, even 42MM. However, due to the style of the watch you might consider a larger size than you usually wear.

Wrist size

Case thickness

2. The 45MM case watches are 12MM thic whereas 42MM case watches are 11MM thick.

Band width

3. The 45MM case watches have 20MM wide watch bands whereas 42MM case watches have 18MM wide watch bands.

Band type

4. Watches with a steel bracelet are heavier than with a leather watch band by 90 gram.

Quartz

A quartz movement in a watch is a type of electronic movement that uses a small piece of quartz crystal to keep time. When an electrical current passes through the crystal, it vibrates at a consistent frequency, which regulates the timekeeping mechanism in the watch. This makes the seconds hand tick once per second in a smooth and continuous motion.

Automatic

An automatic movement, on the other hand, is a mechanical movement that is powered by the movement of the wearer's wrist. As the wrist moves, a rotor inside the watch spins and winds the mainspring of the watch, which powers the timekeeping mechanism. The seconds hand on an automatic watch moves in a sweeping motion, making multiple small ticks per second, rather than once per second like a quartz watch.

In addition, our automatic watches feature an open case back showing the intricacies of our mechanical movements.