Alsta Alsta Nautoscaph IV Blue Shark ALS 3
Alsta Nautoscaph IV – Blue Shark
The Nautoscaph IV features a unidirectional bezel, removing the risk of it being accidentally turned while underwater, which could result in a fatal miscalculation of dive time. It is manufactured and tested to withstand the pressure of depths of 999ft (300m or 29atm). The original Nautoscaph had 999ft on its dial, a touch we loved and therefore kept. For the Nautoscaph IV, we have introduced our ‘Valencia’ beads-of-rice bracelet to complement the piece.
Every component of Alsta timepieces is manufactured in Switzerland, and it is powered by a Seiko NH35A. The watches are assembled, tested and quality-passed in Switzerland. Affordable quality engineering, manufacturing and design will always be a hallmark of Alsta watches.
Like all of our Nautoscaph releases, we make all possible technical, safety and performance improvements while retaining as much of the original designs as possible. Our beautifully styled Alsta timepieces ooze the same romance and charm of the originals. The main differences are modern-day materials and technology. Like the originals, they are powered by quality automatic movements.
Case 316L Marine grade brushed stainless steel with polished edges
Dimensions 40mm diameter case, 51.3mm lug to lug, 20mm lug size, 16.2mm thickness including crystal, 43.4mm width including crown, 217.8mm total length including opened-out bracele
Crown Screw down, polished stainless steel
Dial Blue with applied C3 Super-LumiNova
Hands Tapered sword with C3 Super-LumiNova. Orange seconds hand with C3 Super-LumiNova insert
Movement Automatic Seiko NH35A, 24 jewels
Functions Hours, minutes, seconds, date
Caseback Stainless steel, engraved
Glass Sapphire crystal
Water resistance 999ft/300m
Bracelet Alsta “Valencia” bracelet with safety deployant clasp. 20mm at end tapering to 17.7mm
Bracelet Strap bars Spring-loaded stainless steel
10% discount on first order of Alsta watches using code ALSTA10 (code works once only on Alsta watches)