In beautiful condition, this vintage Sea-Dweller ref.1665 is known to collectors as the 'Great White'... From the first year of production (1977), this Mark I dial was amongst the first to drop the early 'double red' SD signature. The combination of matt charcoal dial, flat Tritium markers, 'open date disc' and super domed plastic glass give unmistakable vintage warmth and make for a super collectable dive tool. Powered by the automatic 1575 movement and covered by our 2 year Watch Club warranty.