{"product_id":"alsta-nautoscaph-iv-blue-shark-watch","title":"Alsta Nautoscaph IV Blue Shark Watch","description":"\u003cp\u003e\u003cstrong\u003eThe Alsta Nautoscaph IV Blue Shark Watch captures the spirit of ocean exploration through a vibrant blue dial, classic diving watch architecture and dependable automatic engineering. Produced in a limited edition of only 100 pieces, this distinctive Alsta dive watch features a 40mm stainless steel case, Seiko NH35A automatic movement, stainless steel Milanese bracelet and 300 metre water resistance. With its rich blue colourway and authentic vintage-inspired design, the Nautoscaph IV Blue Shark is a standout addition to the Alsta collection.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe striking blue dial gives the Nautoscaph IV Blue Shark its unmistakable identity. Inspired by the changing colours of the ocean, the dial provides a vivid backdrop for bold Arabic numerals, applied hour markers and tapered sword hands. C3 Super-LumiNova ensures excellent readability when light levels fall, while the matching blue timing bezel creates a coordinated appearance. A discreet date display adds everyday practicality without detracting from the clean, functional layout of this classic automatic diving watch.\u003c\/p\u003e\n\n\u003cp\u003eThe robust 40mm case is crafted from 316L marine-grade stainless steel, featuring a combination of brushed surfaces and polished edges. With a 51.3mm lug-to-lug measurement and 16.2mm case thickness, the Nautoscaph IV offers a confident presence on the wrist. A scratch-resistant sapphire crystal protects the dial, while the unidirectional rotating bezel and screw-down crown provide essential diving functionality. The watch is water resistant to 300 metres and is completed by a traditional stainless steel Milanese bracelet that reinforces its vintage character.\u003c\/p\u003e\n\n\u003cp\u003eAt the heart of the Alsta Nautoscaph IV Blue Shark is the Seiko NH35A automatic movement. Featuring 24 jewels and operating at 21,600 vibrations per hour, this mechanical calibre provides approximately 41 hours of power reserve. Central hours, minutes and seconds are accompanied by a date display, while shock-resistant construction and ISO 764 anti-magnetic protection support reliable performance. The movement combines established mechanical engineering with the practical simplicity expected from a purpose-built dive watch.\u003c\/p\u003e\n\n\u003cp\u003eThe Alsta Nautoscaph IV Blue Shark Watch is an excellent choice for anyone searching for an Alsta watch, Alsta Nautoscaph, blue dial dive watch, blue automatic watch, limited edition dive watch or vintage-style diving watch. Limited to just 100 pieces worldwide, the Blue Shark combines a vibrant ocean-inspired dial, 40mm stainless steel construction, 300 metre water resistance and dependable automatic movement. It is a distinctive expression of Alsta's commitment to preserving the character of classic watches while refining them for modern collectors.\u003c\/p\u003e","brand":"Alsta","offers":[{"title":"Default Title","offer_id":59039808323967,"sku":"ALS-004","price":595.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1018\/4471\/3855\/files\/alsta-nautoscaph-iv-blue-shark-watch-image.png?v=1793402694","url":"https:\/\/www.clarindon.co.uk\/es\/products\/alsta-nautoscaph-iv-blue-shark-watch","provider":"Clarindon Jewellers","version":"1.0","type":"link"}