HOT ! Helicon Professional Chronograph - Tropopause Blue

A Watch with a Mission

Inspired by the rugged, highly collectible Seiko chronographs issued to the Royal Air Force in the 1980s, the Helicon Professional Chronograph is built to our exacting standards. Every detail of the watch has been carefully considered, with specifications designed for both precision and durability.

🚀 A Space-Age Chronograph from Britain?

Can you imagine a British-built space shuttle?

In the 1960s, the UK quietly developed one — at least on paper.  It was called Project MUSTARD: the Multi-Unit Space Transport and Recovery Device.  A bold, modular shuttle system that could launch into orbit and land like a plane.

Years ahead of its time.  Never built.  But never forgotten.

Inspired by the future that never was ....

Here at Helicon Watches, we’ve always been fascinated by engineering stories lost to time — and the optimism behind them.

This release is inspired by one of Britain’s boldest “what if” moments — and it’s been a long time in the making.

It’s a tribute to British innovation, designed and assembled right here in the UK, and built to perform in all environments — even the most extreme.

Key Features

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  316L stainless steel case – Built for toughness and longevity

  
  


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  Sapphire crystal with internal AR coating – Superior scratch resistance and legibility

  
  


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  Bi-directional bezel – Functional and easy to use in all conditions

  
  


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  Two-layer dial – Adding depth and clarity to the design

  
  


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  Swiss Super-LumiNova – Ensuring visibility in all lighting conditions

  
  


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  Seiko Hybrid Quartz-Mechanical Movement – A proven, reliable engine for this timepiece

  
  


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  Hydraulic case back – Designed for both negative and positive pressure resistance

  
  


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  100m water resistance – Built for adventure

  
  

We have personally overseen the concepting, prototyping, design and assembly here in the UK - each intricate detail carefully considered, with absolutely nothing overlooked.

The packaging was designed by Danielle and is bespoke - sourced and produced entirely here in the United Kingdom, working with five different British businesses. Each box is individually cut, folded and assembled by hand.

Dimensions

Diameter 41mmThickness 11.95 mmLug to lug length 47.5mmLug width for straps 20mm