CHOCOLATE BAR RUBBER STRAPS
In 1969 Seiko introduced a strange new strap without a name or part number, but it is commonly referred to as the “Chocolate Bar” by collectors, due to the raised pattern on the surface.
The strap was introduced on the first Seiko 300m Professional diver (6159) and later on it complemented the now classic 6105-8110. It was also highlighted in the 1979 movie "Apocalypse Now," where it was worn on a 6105 by Captain Benjamin L. Willard, played by Martin Sheen. This is the reason behind the second nickname, sometimes referred to as the “Willard.”
19MM / 20MM / 22MM CHOCOLATE BAR RUBBER STRAP