Alpina Seastrong Diver 300 Heritage - 300m - 42mm AL- 525S4H6Almost half a century after its first appearance, the Alpina Seastrong 10 Super Compressor diving watch finds its way back into the Alpina collection as the Seastrong Diver Heritage. More than a replica, a modern interpretation of a Swiss watchmaking classic. FUNCTIONS Hours, minutes, seconds, date. MOVEMENTS AL 525 caliber. Automatic. 26 jewels. 38 hour power reserve. 28,800 ALT H CASE Polished stainless steel 2 part case. Diameter of 42mm. Height of