Its a unix system

The Diesel On Full Guard watch face, Shell, integrates seamlessly into the Unix system, featuring a sleek digital display that caters to tech enthusiasts. With complications that provide real-time updates, users can view essential information like the battery level and date, ensuring they stay informed and in control throughout the day.

Designed for both functionality and style, Shell boasts multiple workout modes and an integrated ECG (electrocardiogram) feature, making it a comprehensive health companion. Its modular 24h display allows for customization, ensuring that both time management and personal preferences are met with precision and convenience.