Seldén 30mm Single Swivel BB Block Watches The Optimum Sailing (OS) Series

The Optimum Sailing (OS) Series 3 range from Optimum Time has recently had some cosmetic changes with updated graphics and improved circuitry for even greater reliability

Brightens whites and colors

The 16 mm Harken Air Block is Harken’s® smallest block

no hard scrubbing needed

Weight: 13

Seldén 30mm Single Swivel BB Block Watches The Optimum Sailing (OS) SeriesStainless steel ball bearings and glass fibre reinforced sheave for best bearing strength even under high dynamic loads. Acetal bearing cage to prevent ball to ball friction and to reduce weight. Glass fibre reinforced composite. The centre hole can be used as a becket. Specifications Weight: 33g Safe Working Load: 200Kg Breaking Load: 400Kg Max Line: 8mm Shackle: 4mm