Casio will release some special edition watches to celebrate the G-Shock sub-brand's 25th anniversary.

The new models include one created in collaboration with film-maker Spike Lee, one with graphic artist Eric Haze and two retro models inspired by 80's Hip Hop culture reminiscent of the first G-Shock.

Available in the UK from September (November for the Spike Lee Model) the new watches get all the shock- and waterproof features associated with the brand.