Seiko SPB507 Prospex Alpinist Green Dial Brown Leather

The SPB507 represents the soul of the Alpinist collection through its iconic green dial. This colorway traces back to the 1990s, when designer Shigeo Sakai drew inspiration from his almond green Mini Cooper to create what would become the defining Alpinist aesthetic. The rich green dial features gold-tone Arabic numerals and wedge-shaped indices, creating warmth that perfectly complements the brown calf leather strap sourced from LWG-certified tanneries. Cathedral-style hands and generous LumiBrite application maintain the collection's legendary legibility, while the inner rotating compass bezel serves its original navigation purpose. Inside the 39.5mm stainless steel case, Caliber 6R55 provides 72 hours of power reserve with manual winding capability. The 24-jewel automatic movement beats at 21,600 vibrations per hour, visible through the display caseback featuring the Alpinist mountain symbol. Seiko's super-hard coating protects the case from scratches encountered in actual mountain environments, while 200-meter water resistance and screwdown crown ensure capability well beyond typical field watch requirements. At 12.7mm thick with 46.4mm lug-to-lug measurement, this Alpinist delivers comfortable proportions enhanced by the supple leather strap that develops character with wea