Sinn 104 St Sa I Automatic Sports Watch - Metallic Green Dial - Solid Bracelet
- Regular price
- £1,835.00
- Regular price
-
- Sale price
- £1,835.00
- Unit price
- / per
Selected Colour: Metallic Green Dial
- Regular price
- £1,835.00
- Regular price
-
- Sale price
- £1,835.00
- Unit price
- / per
Couldn't load pickup availability
Why do we only ship these watches to customers in the UK?
Buying a watch online should be as simple and worry-free as possible. We want to offer the best possible service, which means that we are currently supplying these watches exclusively to customers within the UK. This decision allows us to:
- Save you time and cost – no unexpected customs duties, import taxes, or international delivery delays.
- Simplify returns & exchanges – hassle-free returns handled directly by our UK team.
- Guarantee warranty coverage – all warranties are fully honoured and supported here in the UK.
- Add more value – faster shipping and better after-sales support, tailored to our UK customers.
By keeping watch sales within the UK, we can focus on delivering a smoother, faster, and more reliable shopping experience.
Pay Securely
Free UK
90 Day Returns
Carbon neutral delivery
Free delivery over £50
Ordering from the UK? All orders are sent with Royal Mail 24 or 48 Tracking
We use some of the best delivery services in the world
More Of Our Favourite Watches
- Regular price
- £1,195.00
- Regular price
-
- Sale price
- £1,195.00
- Unit price
- / per

- Regular price
- £449.00
- Regular price
-
- Sale price
- £449.00
- Unit price
- / per

- Regular price
- £299.00
- Regular price
-
- Sale price
- £299.00
- Unit price
- / per

- Regular price
- £449.00
- Regular price
-
- Sale price
- £449.00
- Unit price
- / per

- Regular price
- £599.00
- Regular price
-
- Sale price
- £599.00
- Unit price
- / per

- Regular price
- £459.00
- Regular price
-
- Sale price
- £459.00
- Unit price
- / per

- Regular price
- £495.00
- Regular price
-
- Sale price
- £495.00
- Unit price
- / per

- Regular price
- £495.00
- Regular price
-
- Sale price
- £495.00
- Unit price
- / per

- Regular price
- £545.00
- Regular price
-
- Sale price
- £545.00
- Unit price
- / per

- Regular price
- £545.00
- Regular price
-
- Sale price
- £545.00
- Unit price
- / per

The Sinn 104 St Sa A is inspired by the classic pilot watch, enhanced by vintage inspired touches that allow for optimum readability. The dial is clearly structured with date/day display, luminous hands and indices and a bidirectional captive pilot’s bezel with minute ratcheting.
The 104 pilot watch uses a 41mm polished stainless-steel case that’s waterproof and low-pressure resistant to 20 bar as per DIN 8310, housed beneath a sapphire crystal with double anti-reflective coating.
Sapphire crystal is also featured on the screw-fastened caseback, framing the self-winding Sellita SW220-1 movement. This reliable movement has anti-magnetic properties, powering the pilot watch at 28,800 semi-oscillations per hour and benefits from a seconds stop function.
Why This Watch?
- A sapphire crystal caseback frames the self-winding Sellita SW220-1 movement.
- A contemporary design with luminous hands and indices and a captive pilot’s bezel.
- Waterproof and low-pressure resistant to 20 bar and features anti-magnetic properties.
About Sinn
Sinn Watches was founded in 1961 and has long been a big name in horology. The brand was originally focused on producing navigation clocks for cockpits, and this design is reflected in their collection of pilot watches decades later. Sinn promises uncompromising functionality in their watch collections, even in the most demanding conditions. Thanks to industry leading technologies such as Ar-Dehumidifying and antimagnetic construction, Tegiment steel hardening and temperature stabilized movements. It’s not surprising then, that Sinn is praised for their high-quality movements and materials and loved by collectors for their accuracy in extremely adverse conditions.
| Strap Material Colour | Metallic Green Dial |
|---|
We are confident that you will be impressed with the quality of our products upon receiving them. We stand behind their craftsmanship and guarantee them to be free of any manufacturing defects. If you have any questions or concerns regarding our guarantees, please click here for more information.
Read More
Domestic Zone 1
All domestic shipments include UK VAT charged at the current rate.
Standard - We use Royal Mail Tracked 48 for our UK standard delivery.
Express - We normally use Royal Mail Tracked 24 or Special Delivery; however, depending on your location, we may use DPD, DHL or UPS as an alternative.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
Under £20.00
Over £20.00
Days
Under £100.00
Over £100.00
Days
United Kingdom
£4.99
Free
3-7
£9.99
Free
1-2
Domestic Zone 2
Please note that customers may have to pay additional tax and duty for orders delivered to these locations.
Standard - We use Royal Mail Tracked 48 for our standard delivery.
Express - We normally use Royal Mail Tracked 24 or Special Delivery, however, depending on your location we may use DPD, DHL or UPS as an alternative.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
Up To £50.00
Days
Under £200.00
Over £200.00
Days
Guernsey
£4.99
3-7
Free
£9.99
1-2
Isle of Man
£4.99
3-7
£9.99
Free
1-2
Jersey
£4.99
3-7
£9.99
Free
1-2
Europe Zone 1
Economy & Tracked - We use UK Royal Mail Tracked Airmail Delivery Duty Paid (DDP), which is passed onto your local postal service for the final part of the delivery.
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
No hassle with taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Economy
Tracked
Express
Country
€
Days
€
Days
€
Days
Belgium
Free*
7-20
€5.99
7-10
€24.99
1-3
Denmark
-
-
€5.99
7-10
€24.99
1-3
Estonia
-
-
€5.99
7-10
€24.99
1-3
Finland
-
-
€5.99
7-10
€24.99
1-3
France
Free*
7-20
€5.99
7-10
€24.99
1-3
Germany
Free*
7-20
€5.99
7-10
€24.99
1-3
Ireland
-
-
€5.99
7-10
€24.99
1-3
Italy
Free*
7-20
€5.99
7-10
€24.99
1-3
Luxembourg
-
-
€5.99
7-10
€24.99
1-3
Netherlands
-
-
€5.99
7-10
€24.99
1-3
Portugal
-
-
£5.99
7-10
€24.99
1-3
Spain
Free*
7-20
€5.99
7-10
€24.99
1-3
Sweden
-
-
€5.99
7-10
€24.99
1-3
* Only available for orders over €25.00
Europe Zone 2
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
No hassle with taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
$
Days
€
Days
Austria
€5.99
7-10
€24.99
1-3
Bulgaria
-
-
€24.99
1-3
Croatia
-
-
€24.99
1-3
Cyprus
€5.99
7-10
€24.99
1-3
Czechia
-
-
€24.99
1-3
Gibraltar
-
-
€24.99
1-3
Greece
-
-
€24.99
1-3
Hungary
-
-
€24.99
1-3
Latvia
-
-
€24.99
1-3
Lithuania
-
-
€24.99
1-3
Malta
€5.99
7-10
€24.99
1-3
Monaco
-
-
€24.99
1-3
Poland
-
-
€24.99
1-3
Romania
-
-
€24.99
1-3
Slovakia
-
-
€24.99
1-3
Slovenia
-
-
€24.99
1-3
Europe Zone 3
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
No hassle with taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
€
Days
€
Days
Norway
€5.99
7-10
£24.99
1-3
Switzerland
€5.99
7-10
€24.99
1-3
International Zone 1
Standard - Not available
Tracked - We use UK Royal Mail Tracked Airmail Delivery Duty Paid (DDP), which is passed onto your local postal service for the final part of the delivery.
*Not available for Alaska, American Samoa, Micronesia, Guam, Hawaii, Marshall Islands, Palau, Puerto Rico, US Virgin Islands.
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
*Not available for Armed Forces Americas, Armed Forces Europe, Armed Forces Pacific.
No hassle with taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
$
Days
$
Days
United States
$12.99
5-15
$39.99
5-7
International Zone 2
Tracked - We use UK Royal Mail or DPD Tracked Airmail, which is passed onto your local postal service for the final part of the delivery, all shipments are sent with any import taxes and duties paid.
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
No hassle taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
£
Days
£
Days
Australia
£5.99
10-20
£19.99
3-4
Canada
£9.99
7-10
£24.99
1-3
International Zone 3
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
No hassle with taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Tracked
Express
Country
£
Days
£
Days
Argentina
-
-
-
-
Chile
-
-
-
-
China
-
-
-
-
Hong Kong
£6.99
7-10
£24.99
3-4
Iceland
£6.99
7-10
£24.99
1-3
India
-
-
-
-
Indonesia
-
-
£39.99
2-11
Israel
-
-
-
-
Japan
£6.99
7-10
£24.99
1-3
Jordan
-
-
-
-
Kuwait
-
-
£69.99
2-11
Macao Sar
-
-
-
-
Malaysia
-
-
£39.99
2-11
New Zealand
-
-
£24.99
3-4
Philippines
-
-
£39.99
2-11
Saudi Arabia
-
-
£39.99
2-11
Singapore
£6.99
7-10
£24.99
3-4
South Africa
-
-
£39.99
2-11
South Korea
£6.99
7-10
£24.99
1-3
Sri Lanka
-
-
-
-
Taiwan
£6.99
7-10
£24.99
1-3
Thailand
-
-
-
-
United Arab Emirates
-
-
£69.99
2-11
International Zone Rest of World
Express - We use DHL, UPS or FedEx Delivery Duty Paid (DDP) for our express delivery.
No hassle with taxes and duties - To avoid any additional charges or delays, all shipments are sent with any import taxes and duties paid.
Returns - Changed your mind? You can return unused items within 90 days for a refund, view our full returns policy here.
Express
Country
£
Days
Rest of the World*
£39.99
2-11
*We’d love to ship everywhere, but there are a few exceptions. See the list below for the countries we’re unable to deliver to.
Europe: Albania, Andorra, Armenia, Azerbaijan, Belarus, Bosnia and Herzegovina, Georgia, Kosovo, Moldova, Montenegro, North Macedonia, Russia, Serbia, Turkey, Ukraine, Vatican City
Asia: Afghanistan, Bangladesh, Bhutan, Brunei, Cambodia, China, India, Kazakhstan, Kyrgyzstan, Laos, Maldives, Mongolia, Myanmar, Nepal, Pakistan, Sri Lanka, Tajikistan, Turkmenistan, Uzbekistan, Vietnam
North America: Mexico
Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
Africa: All African countries except South Africa
Oceania: Fiji, Papua New Guinea, and other Pacific islands

Why Choose a Sinn 104 St Sa I Automatic Sports Watch - Metallic Green Dial - Solid Bracelet ?
Over 60 Years History
Founded in 1961 by pilot Helmut Sinn, the company originally supplied aviation timepieces and has since expanded into diving and professional instruments, blending German industrial design with technical innovation.
German engineering
Designed and assembled in Frankfurt, Sinn watches embody a distinctly German approach to watchmaking. Precise construction, carefully selected materials and rigorous attention to functional detail create dependable watches made for many years of regular use.
Built for a purpose
Every element of a Sinn watch is designed with a clear purpose. Highly legible displays, durable cases and practical complications combine to create a genuine instrument watch without unnecessary decoration or distracting design features.
Understated by design
Sinn offers serious watchmaking without relying on conspicuous luxury or an instantly recognisable status symbol. Its restrained designs appeal to enthusiasts who value engineering integrity, practical performance and long-term quality over decoration or fashion.

Why choose WatchGecko?
- Over a decade of experience.
- An internationally renowned destination for watch enthusiasts.
- A trusted choice for new buyers entering the world of horology.
- Our passion for watches inspires us to craft straps that enhance timepieces, blending style and functionality seamlessly.
Latest blog posts
Highley Reimagined: Discover the New Colours of a WatchGecko Classic
Fresh tones. Timeless character. The Highley strap evolves. Few straps earn the status of a true staple, but the Original Vintage Highley has done exactly that. A consistent favourite within the WatchGecko collection, it has...
Traditional vs Quick Release Spring Bars - Which Is Better?
A humble component that is often overlooked in the watch world but important nonetheless and plays a far bigger role than many people realise. But which variation is the best, traditional or quick release? Let’s...
The Cortez Racing Leather Watch Strap - Where Craftsmanship Meets Character
A great watch deserves an equally considered companion. Enter the Cortez Vintage Racing Watch Strap, a piece that speaks not only to craftsmanship, but to the confidence of well-made design rooted in traditional leatherworking and...
The Best New Watch Releases for June 2026
June has delivered one of those wonderfully mixed months in horology. The kind where serious collectors are quietly rearranging their wish lists while the rest of us are spotting genuinely exciting, attainable pieces that don’t...
Yema's Renaissance? The Skin Diver and Granvelle Renaissance Reviewed
There are few brands in independent modern watchmaking quite like Yema, from its humble beginnings in 1940’s France, the company built its reputation producing capable tool watches for divers, pilots, and adventurers. In fact models...