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Specifications

Dimensions: 40mm diameter, 51.3mm lug-to-lug, 16.2mm thick (with crystal)


Case Material: 316L stainless steel
Water Resistance: 300m (30 ATM), exceeding ISO 6425 dive watch standards
Crown: Screw-down for enhanced underwater security
Anti-Magnetism: Resistant up to 4,800 A/m (ISO 764 compliant)
Dial: Blue Shark, Great White, Black, Tropic (Orange), and All Red
Luminescence: C3 Super-LumiNova for superior low-light readability
Movement: Seiko NH35A automatic movement with time and date function
Crystal: Scratch-resistant sapphire

 

 

The Nautoscaph is offered with carefully selected straps that enhance both its character and versatility. The stainless steel models come fitted with a steel bracelet, evoking the timeless aesthetics of classic tool watches, while the bronze medals are paired with hand-made Italian leather straps, carefully chosen to complement the warmth of the case and develop a unique patina over time.

For those seekinhg a more adaptable option, the Orca strap -- a high performance rubber strap inspired by Quint's boat in Jaws -- is available across the range. Every Nautoscaph ordered with the Orca strap comes presented in a beautifully designed travel pouch, offering both protection and refinement when the watch is sporting this ruggedly elegant strap.

 

 

Built to Last a Lifetime of Exploration
Two-year warranty covers movement failure and manufacturing defects from date of purchase. Contact service@alstawatch.com if you have a problem with your watch within the warranty period. You may also contact us outside the warranty period to arrange for repairs or regular servicing of your mechanical watch.

 

Orders may be cancelled within 14 days of the order date for a full refund. After 14 days, cancellations are not accepted as production on your watch will have already begun.

 

 

 

The Nautoscaph line holds a series of lifestyle pieces aimed at the person who wants to seamlessly and effortlessly go from their outdoor activities to their working hours and back into their evening leisure outings without having to change their timepiece.

 

The romance of the sea, pulling on the urban, professional/creative, affluent, lifestyle diver/sailor etc who wants to have an elegant, robust and beautifully designed timepiece that fits alongside their elegant and beautifully designed other lifestyle items that they covet and enjoy owning.

 

 

 

Built to Last a Lifetime of Exploration

 

Alsta strives to draw on its heritage and provide best in class skin diver timepieces, focusing on thinness, mechanical precision and elegance of design.

The modern Nautoscaph follows the design language of the original, however, it has taken on some different looks, such as coloured dials and even a bronze case. The elegance of the Nautoscaph has remained even though the dimensions have increased. The ruggedness and waterproofness is at the heart of the Nautoscaph and despite its elegant looks, it is made to withstand the knocks and bumps of any good adventure.

The Nautoscaph started life as a skin diver, and is still a skin diver at heart, although it is rated to withstand professional dive depths. This is where the Nautoscaph will continue to sit in the Alsta line. Tough enough for the mountain face or the ocean and elegant enough for the board room or the dinner table.

 

By Design

Case                                316L marine-grade brushed stainless steel with polished edges

 

Dimensions                                40mm diameter

                                                                              51.3mm lug-to-lug

                                                                              20mm lug size

                                                                              16.2mm thick

 


Crown                                                   Screw-down, polished stainless steel

                                                                              Cross hatch engarving


Bezel                                                         Steel, unidirectional, blue or black ceramic insert


Dial                                                             Sunburst blue, matte black or brilliant red with applied C3 Super-LumiNova indices
Functions: Hours · Minutes · Seconds · Date

 


 


Hands                                                  Tapered sword hands with C3 Super-LumiNova

                                                                            Orange seconds hand (black dial only)

 


Glass                                                      Scratch-resistant sapphire crystal


Caseback                                      Stainless steel · Engraved


Water Resistance         999ft / 300m (30 ATM)

 

Functions: Hours · Minutes · Sconds · Date

 


 

Movement                                Seiko NH35A Automatic

 

                                                                          24 jewels · 21,600 vibrations/hour · 41-hour power reserve


                                                                          ±30 seconds/day accuracy


                                                                          ISO 764 anti-magnetic

 

                                                                          Shock resistant

                                                                           

                                                                          Functions: Hours · Minutes · Seconds - Date display

Functions: Hours · Minutes · Seconds · Date

 


Case                                

316L marine-grade brushed stainless steel with polished edges

 

Dimensions                               

40mm diameter

                                                                               

51.3mm lug-to-lug

                                                                               

20mm lug size

                                                                               

16.2mm thick

 


Crown                                                   

Screw-down, polished stainless steel

                                                                             

Cross hatch engraving


Bezel                                                         

Steel, unidirectional, blue or black ceramic insert


Dial                                                             

Sunburst blue, matte black or brilliant red with applied C3 Super-LumiNova indices
Functions: Hours · Minutes · Seconds · Date

 


 


Hands                                                 

Tapered sword hands with C3 Super-LumiNova

Orange seconds hand (matte black dial only)


Glass                                                       

Scratch-resistant sapphire crystal


Caseback                                       

Stainless steel

Engraved


Water Resistance         

999ft / 300m (30 ATM)

Date

 


Movement

                                                                         

Seiko NH35A Automatic


24 jewels

21,600 vibrations/hour

41-hour power reserve                                                                         

±30 seconds/day accuracy

 

ISO 764 anti-magnetic

 

Shock resistant

                                                                           

Functions: Hours · Minutes · Seconds - Date display
Functions: Hours · Minutes · Seconds · Date

 


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ORCA STRAP

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