Engineer Master II Diver Worldtime Blue Dial

Bought this watch back in January from an online AD in Spain. Took a while to get it, probably because I requested a unique serial number. I love the functions and attributes - true diver with 300m water resistance and unidirectional bezel, fun Worltimer function with 24 time zones, day, date, and even a sapphire case back! Plus, this thing lights up like a Christmas tree at night! As you might expect, a bit chunky, and the accuracy has been inconsistent. The first few months it was about 3 seconds fast per day, but then for a few weeks it was up to 20 seconds a day fast! However, for the last couple of months, the accuracy has improved back to 3 to 5 seconds per day.