The original Timex S1 Automatic by Giorgio Galli is a 41 mm mechanical watch with a layered, skeletonized case, a Miyota 9039 movement and 20 mm lugs. In Fratello’s hands-on review, Tomas Rosputinsky found the case rewarding to explore and the rotor distinctly audible. Those observations—and the original watch’s K1 hardened glass—belong to the 41 mm model, not Timex’s later 38 mm S1 versions with sapphire crystal.
What the original Timex S1 Automatic is
Fratello published its hands-on article on January 8, 2020. It identifies the watch as the Timex S1 Automatic by Giorgio Galli, designed by Galli, with a metal-injection-molded 316L stainless-steel skeleton case. Its visual character comes from the case architecture as much as from the dial: the layered components leave the construction on display, while a see-through caseback exposes the automatic movement.
Galli described the design direction this way: “The S1 is a bridge between classic watchmaking and industrial design.” A jewel on the dial is not merely decorative, according to the designer: “The jewel on the dial represents the automatic movement inside the watch.” Both quotes are reported in Fratello’s January 8, 2020 article.
Original 41 mm S1 specifications
The following specifications are those listed by Fratello for the original watch; they should not be treated as specifications for every later S1 reference.
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| Specification | Original 41 mm S1 |
|---|---|
| Case diameter | 41 mm |
| Case height | 11 mm |
| Case | Metal-injection-molded 316L stainless-steel skeleton case |
| Crystal | K1 hardened IGN/A3 glass |
| Caseback | Steel and see-through |
| Movement | Miyota 9039 automatic, 24 jewels |
| Power reserve | 42 hours |
| Functions | Time; hacking seconds |
| Strap and lug width | Synthetic rubber strap; 20 mm lug width |
| Water resistance | 50 m |
| Price listed in the 2020 article | €450 |
These details are attributed to Fratello’s original-model article. The €450 figure is the price in that 2020 article, not a current universal price.
What the hands-on review says about wearing it
Fratello reviewer Tomas Rosputinsky says Timex could not provide a review sample, so he bought the watch himself and wore it casually for two weeks. He found the multi-component case engaging: its construction and details gave him things to keep looking at rather than reading as a simple, flat-sided case.
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He also reported a pronounced metallic whirring from the rotor. Rosputinsky says he enjoyed hearing it as a regular reminder that he was wearing a mechanical watch. That is one wearer’s subjective impression, not a guarantee that the noise will be equally noticeable—or welcome—to everyone.
Do not confuse the original 41 mm watch with later 38 mm S1s
Timex’s later regional product pages describe 38 mm S1 models with sapphire crystal. That is a meaningful version difference: the original Fratello article specifies a 41 mm case and K1 hardened glass. One version’s crystal, dimensions, strap width, price or availability should not be carried over to another.
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- Durable Construction: A 38mm brass case with a mineral glass crystal is built for everyday reliability through years of daily wear
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| Reference or source | Size and crystal | Band width | Price and page status |
|---|---|---|---|
| Original model, as listed by Fratello, January 8, 2020 | 41 mm; K1 hardened glass | 20 mm | €450 in the 2020 article; current status not stated there |
| Timex EU TW2V70300, black, page accessed October 8, 2026 | 38 mm; sapphire crystal | 18 mm | €475; out of stock on the page checked |
| Timex UK TW2V03500, Atlantic Blue, page accessed October 8, 2026 | 38 mm; sapphire crystal | not stated on the cited listing | £425; low stock on the page checked |
| Timex UK TW2V70400, black-dial gold-tone limited edition, page accessed October 8, 2026 | 38 mm; the cited page describes a 38 mm limited edition | not stated on the cited listing | Numbered 1–500; out of stock on the page checked; price not stated |
The later-model details are regional listing snapshots: see Timex EU TW2V70300, Timex UK TW2V03500, and Timex UK TW2V70400. Prices and stock can change, and the figures above are specific to the named regional pages as accessed October 8, 2026. The cited UK pages do not establish the band width for those references.
Which size and strap details matter
Choose by case size, not just the S1 name
The original 41 mm model and the later 38 mm listings are not interchangeable descriptions of one unchanged watch. If case size is important to fit, check the exact reference before buying: the original is listed at 41 mm, while the Timex pages cited here are for 38 mm models.
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- Please be attention that screen protector is flexible plastic film, Not Tempered Glass.
- TPU material with smooth surface, keep you a high touch sensitive and fast fingerprint recognition.
- 4H Hardness can effectively resist daily scratches.
- Self-healing properties enable the film to recover from minor scratches and keep your screen brand new.
- Dust-free,bubble free,one-push super easily installation.
Confirm lug width before ordering a strap
The original model’s listed lug width is 20 mm. Timex also lists an S1-branded 20 mm soft synthetic rubber strap, reference TW7C82700, on its EU site; the strap listing is not evidence that every S1 takes that width. In fact, the EU black 38 mm TW2V70300 listing specifies an 18 mm band width. Match the strap to the watch’s exact reference and verify the listing before purchase: Timex EU’s TW7C82700 strap listing.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the Timex Giorgio Galli S1 worth considering?
The strongest case for the original S1 is its distinctive physical design: an industrial, multi-part case, visible mechanics and an automatic movement, rather than a conventional minimalist watch. Fratello’s reviewer found the case details compelling and personally liked the audible rotor. Those are useful cues if you enjoy watches that invite close inspection and do not mind a mechanical sound that may be noticeable.
Best Value
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The buying decision also depends on securing the correct version. The 41 mm model’s published specification set includes K1 hardened glass and 20 mm lugs; later 38 mm regional listings specify sapphire crystal, and at least one specifies 18 mm width. The prices in the available listings are not like-for-like current quotes: €450 is the original article’s 2020 figure, while €475 and £425 are later regional page snapshots accessed October 8, 2026, with different stock statuses.
Fratello’s full account of the original watch is available at Hands-on with the Timex S1 Automatic by Giorgio Galli.
Quick Recap
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.
