Alpina Seastrong Diver Extreme Automatic and Alpiner Extreme Solarmetre editions mark the Route du Rhum

At a glance

• The Seastrong Diver Extreme Automatic has a turquoise dial with an ocean-current pattern, a carbon-fibre compass bezel insert and a race-route case back. It is limited to 313 individually numbered pieces.
• Its stainless steel case measures 39.00 by 40.50 mm and 13.40 mm thick, with 30 bar water resistance. Automatic Calibre AL-525 provides a 38-hour power reserve.
• The Alpiner Extreme Solarmetre is limited to 513 pieces, with a black patterned dial, turquoise accents and a carbon-fibre bezel insert. Its case measures 37.50 by 38.90 mm and 10.19 mm thick, with 10 bar water resistance.
• Solar quartz Calibre AL-140 powers the Solarmetre. According to Alpina, it can run for up to 10 months in complete darkness, while one minute of light provides a full day of operation.
• The Seastrong reference AL-525T3VE6 costs €2,195 and comes on a black and turquoise rubber strap. The Solarmetre reference AL-140BT3AE6 costs €1,095 and has a black rubber strap.