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The Sinn 104 St Sa I W is the white-dial version of the brand’s 104 pilot-watch family: a 41 mm polished steel watch with day and date displays, a bidirectional ratcheting pilot’s bezel, and a display back. Sinn’s September 2026 specification sheet lists it from €1,530 with a leather or silicone strap, including tax, or from €1,830 on a solid bracelet. Those are manufacturer prices, not a hands-on verdict: the published specifications cannot tell you how the polished case will wear on your wrist, how a particular example keeps time, or whether its size suits you.
What is the Sinn 104 St Sa I W?
Sinn calls the 104 St Sa I W “a classic pilot watch designed in traditional SINN style.” The I W designation identifies the glossy white dial; the wider 104 St Sa I family also includes the anthracite I A and dark-blue I B. Sinn’s 2025–2026 catalogue places these variants in the same family, with the same basic pilot-watch layout and feature set.
The I W pairs its bright dial with applied indices and hour, minute, and seconds hands coated with luminous material. Its display includes both day of the week and date. A captive pilot’s bezel ratchets in one-minute increments and rotates in either direction; Sinn describes it as securely attached to the case and gives it a luminous key mark.
Specifications and listed price
The figures below are from Sinn Spezialuhren GmbH’s specification sheet for the I W, dated September 2026. They are manufacturer-published specifications and prices, not independent measurements or retailer quotes.
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- Crisp Silver-Tone Style: White dial and silver-tone 38mm case pair with an adjustable black leather strap for a clean, versatile look
- Adjustable Leather Strap: A 20mm genuine leather band fits up to an 8-inch wrist circumference for secure, comfortable everyday wear
- Durable Construction: A 38mm brass case with a mineral glass crystal is built for everyday reliability through years of daily wear
- Indiglo Backlight: A quick push of the button illuminates the dial in the dark, whenever it's needed most, day after day
- Built to Last: A Timex watch is designed for durability and everyday reliability; every piece reflects our commitment to quality without compromise
| Item | Sinn-listed specification |
|---|---|
| Case | Polished stainless steel; 41 mm diameter; 11.9 mm thick |
| Lug width | 20 mm |
| Weight | 73 g without strap |
| Crystal | Sapphire crystal at the front, with anti-reflective treatment on both sides |
| Case back | Transparent sapphire, treated on the interior; screw-fastened |
| Crown | Screwable |
| Movement | SW 220-1 self-winding; 26 jewels; 28,800 semi-oscillations per hour; seconds stop |
| Anti-magnetism | Specified to DIN ISO 764 |
| Functions | Hours, minutes, seconds, day display, date display, captive pilot’s bezel with minute ratcheting and luminous key mark |
| Water resistance | Pressure-resistant to 20 bar; low-pressure resistant; stated to meet DIN 8310 technical requirements for water resistance |
| Warranty | Two years |
| Starting price, leather or silicone strap | €1,530, including tax |
| Starting price, solid bracelet | €1,830, including tax |
The listed 20 bar rating is a manufacturer specification, not by itself a recommendation for a particular water activity. Consult Sinn for activity-specific guidance and check the condition and service history of a used watch before relying on its water resistance.
Sinn says its movement information reflects current production in Frankfurt and warns that individual sales-partner stock can differ because of technical changes. That qualification is especially relevant when comparing older inventory or a pre-owned example with the current sheet.
Rank #2
- History in Your Hands - Wear a World War 2 Watch similar to that worn by soldiers during one of the humanity’s most trying times. The Flieger watches used by the Luftwaffe, the Third Reich´s air force, during WWII were an essential part of the equipment of the German bombers. Your watch is a connection to real lives and untold stories.
- Vintage Design combined with Modern Technology - This watch has a Highly Accurate Quartz Movement, three-hander with luminous hands, 42 mm wide round stainless-steel case with mineral crystal. This luxury piece has a water resistance of 10 ATM (means apron 100 meters waterproof for swimming or snorkeling).
- Designed by Experts - The watch has been designed to be as close as possible to the original watches used during the War. Faithful reflection of the original watch, the steel back cover and the side are engraved with the production and navigation codes of the original watch (FI 23883).
- Collector's edition - Expand your collection or historical display by adding similar watches to those operated (worn) by the real protagonists from all around the world during World War II. Each watch tells the story of a country's soldiers and the tragedy of war. Each of them corresponds to a limited series, of which only 500 units have been produced and engraved with the corresponding numbering (001/500, 002/500...).
- Gift Box Included - Receive your watch protected by a nice cloth watch pouch, which comes inside a luxurious box. Perfect to give as a pleasant surprise to a loved one. All package includes a brief description of the watch's history and technical features and the factory warranty.
How does the white I W differ from the I A and I B?
The clearest stated distinction among these family variants is the dial color and finish. The I W has a glossy white dial; the I A uses anthracite electroplated sunburst, and the I B uses dark-blue sunburst. Sinn’s catalogue describes the family as sharing day/date displays, a two-way minute-ratcheting pilot bezel, sapphire crystal and display back, a 20 bar rating, and a two-year guarantee.
| Variant | Dial as described by Sinn | Best reason to choose it |
|---|---|---|
| 104 St Sa I W | Glossy white | A bright, high-contrast look rather than a darker sunburst dial |
| 104 St Sa I A | Anthracite electroplated sunburst | A dark neutral dial with a sunburst finish |
| 104 St Sa I B | Dark-blue sunburst | A dark blue dial with a sunburst finish |
The catalogue’s shared-family description does not establish that every detail or supplied configuration is identical across every production batch. Check the exact reference and included strap or bracelet when comparing listings. The September 2026 prices above apply specifically to the I W sheet and should not be treated as current prices for the other variants.
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- From the Bulova Archive Series, The Lunar Pilot made space history on August 2, 1971--during the Apollo 15 mission, a moon pilot chronograph was worn on the moon.
- 6 Hand, Chronograph, High Performance Quartz
- Silver-Tone Stainless Steel
- Sapphire Crystal
- 50M Water Resistant and 3 Year Limited Warranty
What can the specifications tell you about fit and ownership?
The official dimensions give a useful starting point, not a fit verdict. The case measures 41 mm across, is 11.9 mm thick, and takes a 20 mm strap; its listed 73 g weight excludes the strap. Whether it feels comfortable or looks proportionate depends on your wrist, the watch’s stance and lug shape, and the chosen strap or bracelet. Those impressions require trying it on or handling the exact configuration.
The polished steel case, sapphire front crystal, screwable crown, and screw-fastened case back are construction details from Sinn’s sheet. They do not establish how well the finish resists marks over time or how the bezel and crown feel in use. Likewise, the SW 220-1 specification does not predict the timekeeping of an individual watch. No measured accuracy, wear test, or long-term durability result is established here.
Rank #4
- Stainless-steel Case - The durable stainless-steel case is resistant to corrosion, rust, and daily wear and tear.
- Chronograph - The main advantage of a chronograph is its stopwatch function, allowing you to measure elapsed time accurately and with ease.
- Eco-friendly Fabric Strap - The slip-thru fabric strap is crafted from recycled plastic, bringing new life to materials that would otherwise end up in the landfill. It's also double-layered for durability.
- Enhanced Visibility - Luminant hands make it easier to tell the time in lowlight conditions.
If you are considering an aftermarket strap, the 20 mm lug width is a useful compatibility starting point, but not a guarantee that every nominally 20 mm strap will fit well. End-link shape, spring bars, strap thickness and taper, and clasp compatibility can all matter.
Quick Recap
Best Value
- AVI-8 - OUR STORY: The brand inspiration and design excellence originates from the collaboration between pilots and engineers who served in air forces around the world. Every collection is an explicit homage to the planes, people and history of military aviation. Each timepiece brings to life the detail and narrative of the inspiration to delight and engage the wearer.
- THE HAWKER HURRICANE CLASSIC CHRONOGRAPH: A tribute to arguably the most iconic plane from the WW2 era. The Hawker Hurricane Classic Chronograph is characterised by a simplicity that echoes the design of its namesake. Clean, bold lines surround the dial on which the colours and graphics celebrate the fighter plane’s simple but striking motif that identified the Hawker Hurricane.
- CHRONOGRAPH MOVEMENT: A classic timepiece that speaks across generations - a stylish men's watch with Japanese Quartz Chronograph movement and date function
- THE FINER DETAILS: The Hawker Hurricane Classic Chronograph features a 42mm stainless steel case, a 22mm genuine leather strap, mineral lens and water resistance of 50m.
- 2 YEARS INTERNATIONAL WARRANTY: Your AVI-8 watch is warranted against any manufacturing defect for a period of twenty-four (24) months from the date of purchase.
What should you verify before buying?
- Exact variant: Confirm that the listing is for the white-dial I W, not the anthracite I A or blue I B.
- Configuration: Check whether the watch includes leather, silicone, or the solid bracelet; the manufacturer’s starting prices differ by configuration.
- Local price and availability: The September 2026 euro prices include tax and come from Sinn. Retail prices and availability can vary by region and seller.
- Stock and production details: Ask whether the example is current production or older stock, since Sinn notes that technical changes can make sales-partner stock differ.
- Fit and finish: Try the watch on if possible, especially if case size, polished surfaces, or bracelet feel are deciding factors.
- Water use: Treat 20 bar as the stated rating and get manufacturer guidance for the activity you have in mind.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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