A vintage Hamilton Sea Hawk 30 watch features an S&G case, integrated bracelet, and black dial. It uses a butterfly clasp and has a quartz movement.

• Condition: Good condition
• Case size: 31mm (including crown)
• Movement type: Quartz
• Max wrist size: 7.25 inches

A rare vintage men’s Hamilton Sea Hawk 30 with an S&G case and black dial, featuring an integrated bracelet.

• Condition: Good
• Case size (diameter): 31mm
• Wrist size limit: 7.25
• Movement type: Quartz

A Girard-Perregaux Sea Hawk II Pro Diver Titanium watch featuring a 44mm titanium case, water resistance to 3000 meters, and an in-house self-winding automatic movement with power reserve indicator and date functions. The watch is said to keep excellent time and has great amplitude.

• Condition: Excellent, with some scuffs and light scratches in the case back and on the lugs
• Case size diameter: 44 mm
• Case thickness: 20 mm
• Water depth rating: 3000 meters / 9,900 feet