The Glycine Combat Sub 42 (GL0077) is a Swiss-made automatic dive watch that pairs robust performance with a classic tool-watch aesthetic. The 42mm stainless steel case measures 10.6mm thick and houses a Swiss ETA-based SW200-1 automatic movement with 25 jewels, offering reliable timekeeping without a battery.

The blue dial features a uni-directional rotating bezel with an aluminum insert, a screw-down crown, and a scratch-resistant sapphire crystal. Yellow SuperLuminova applied to the hands and hour markers ensures legibility in low-light and underwater conditions. Water resistance is rated to 200 meters (20 ATM), making it suitable for swimming, snorkeling, and recreational scuba diving.

The watch rides on a stainless steel bracelet with a 22mm lug width and a fold-over safety clasp. The Combat Sub's characteristic down-swept lug design allows the 42mm case to sit comfortably on a wide range of wrist sizes, often wearing smaller than its measurements suggest. A date display and a 2-year manufacturer warranty are included.