The Seiko Prospex SBBN033 "Tuna" is a 300m professional quartz diver, widely considered an "ultimate tool watch" for its durability and accuracy. It features a distinctive 47.7mm stainless steel shrouded case, a high-torque 7C46 quartz movement, 5-year battery life, and superior LumiBrite, often described as an excellent value.

Has new sapphire crystal, however during top pip disappeared. That is the only sign of wear.