Sea Hawk is a game for the Atari 2600. There are actually 2 different games named Sea Hawk The first was originally produced by Panda Software, (Panda Sotware #108), but was later rereleased by Froggo under the name Sea Hunt. The second Sea Hawk was a clone of Scuba Diver also put out by Froggo. Both Sea Hawks rarity are ranked 6, (rare+) by atariage.com with an estimated value of $20 - $30.
The Panda version of Sea Hawk is an Airplane game. While the Froggo version is an underwater adventure game. Neither one is particularly fun or memorable.