SEIKO SPB543J PROSPEX MENS AUTOMATIC DIVERS CUST ORDSeiko Prospex proudly unveils three limited edition timepieces, each capturing the rare and awe inspiring natural landscapes of Asia and Oceania, created under the theme of the wonders of nature. Available exclusively in the Asia Pacific region excluding the Japan market, with a total production of just 5,500 pieces across all three models. SPB543J Evoking the Blue Fire Crater of Indonesia. The deep blue tones express the powerful and enigmatic energy