Delma's Shell Star collection is one of the Swiss watchmaker's historic collections having been launched in 1975 and is aimed at lovers of diving or diving watches in general. These models have a 44-millimetre diameter steel case, which is also available in a "Black Tag" version, i.e. DLC-treated in black and produced in a limited edition of 299 pieces. The crown (with a protective casing) and case back are screwed down and the bezel is unidirectional rotating. The Shell Star models shown here are all water-resistant to a pressure of up to 50 atmospheres (500 metres) and are powered by ETA automatic movements, calibre 2824-2 (28,800 vibrations per hour, 25 jewels, 38-hour power reserve). The dial, available in various colours, has well-sized hands and hour markers treated with luminescent substance, as well as a date display at 3 o'clock, and is protected by a sapphire crystal. Leather or rubber straps are available for attaching the Shell Star by Delma to the wrist, as well as a steel bracelet. The price is CHF 1,290.
