The Girard-Perregaux Sea Hawk II (Reference 4992 / 49920) is a highly regarded, robust luxury dive watch celebrated for its unique asymmetric design and in-house craftsmanship.

• Asymmetric Crown Placement: The most defining design characteristic of modern Sea Hawks is the screw-down winding crown located at 4:30. This placement prevents the crown from digging into your wrist and integrates seamlessly into a robust crown guard built into the case lugs. 

• Eccentric Dial Configuration: The high-contrast black dial layout positions its complications uniquely—featuring a subtle date aperture sitting deep at 1:30, a sub-seconds tracking dial near 10:00, and a prominent fan-shaped power reserve indicator at 6:00.

• Exceptional Legibility: Designed as a pure utility tool, it features a unidirectional rotating elapsed-time bezel and oversized hands coated with high-performance luminescence for exceptional visibility underwater or in pitch-black conditions.

• Strap & Bracelet Options: The watch was factory-supplied on either a heavy-duty, highly engineered stainless steel bracelet or a fitted, vulcanized natural rubber strap with a folding deployment buckle.

• Brand: Girard-Perregaux

• Model Line: Sea Hawk II

• Reference Number: 4992 (often cataloged as 49920)

• Case Diameter: 42mm (some variations range up to 43.5mm depending on the exact case edge integration)

• Case Thickness: Approximately 13.5mm to 14.5mm

• Case Material: Available in brushed and polished stainless steel (with rare limited editions in titanium or 18k gold).

• Movement: In-house Girard-Perregaux Caliber GP03300 (or GP 33 RO) automatic movement featuring hacking seconds for easy time synchronization.

• Power Reserve: Up to 46 hours, easily tracked via a distinct dial indicator.

• Water Resistance: 300 meters (1,000 feet), secured by a screw-in case back and screw-locked crown.