The clearest difference is the movement: the Formula 1 Solargraph uses light-powered quartz, while other Formula 1 models include conventional quartz and automatic chronographs. The cited 38 mm Solargraph is a time-and-date watch with 100 m water resistance; the two cited chronographs are larger, add stopwatch functions, and list 200 m water resistance. These details apply to the specific references compared here, not every watch in the Formula 1 collection.
What does “Solargraph” mean?
On reference WBY1111.BA0042, Solargraph identifies a quartz movement, Calibre TH50-00, that converts natural and artificial light into energy. TAG Heuer says the watch recharges during everyday use. Unlike a conventional battery-powered quartz watch, its charging is designed around light exposure; it remains a quartz watch, not a mechanical or automatic one. TAG Heuer’s product page describes the movement and its charging claims.
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The movement is also the practical distinction from the two chronographs below: the Solargraph example displays hours, minutes, seconds, and the date, without a stopwatch function.
How do the three Formula 1 references compare?
This comparison uses the Solargraph WBY1111.BA0042, quartz chronograph CAZ1011.BA0843, and automatic chronograph CBZ2082.BF0009. TAG Heuer’s product specifications describe these exact references; they should not be read as collection-wide specifications.
#1 Best Overall
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| Specification | Solargraph WBY1111.BA0042 |
Quartz chronograph CAZ1011.BA0843 |
Automatic chronograph CBZ2082.BF0009 |
|---|---|---|---|
| Movement | Calibre TH50-00 Solar Quartz | Quartz | Calibre 16 automatic |
| Listed functions | Hours, minutes, seconds, date | Hours, minutes, seconds, 1/10-second chronograph, 30-minute counter, date | Hours, minutes, date, chronograph with permanent seconds, 30-minute and 12-hour counters |
| Case diameter | 38 mm | 43 mm | 44 mm |
| Water resistance | 100 m | 200 m | 200 m |
| Case and bracelet | Steel case and steel bracelet | Steel case; steel and ceramic bracelet | Titanium case and bracelet |
| Distinctive detail | Light-powered quartz; compact example | Quartz stopwatch timing | Automatic chronograph; stated 48-hour power reserve |
Sources: TAG Heuer’s official Solargraph, quartz chronograph, and automatic chronograph product pages. Specifications can vary across references and configurations.
What do the size and water-resistance differences mean?
In these examples, the Solargraph is 38 mm across, compared with 43 mm for the quartz chronograph and 44 mm for the automatic chronograph. If a smaller case is a priority, the cited Solargraph is the most compact of the three. Case diameter alone does not determine how a watch wears, and the figures do not establish the size of every Solargraph or Formula 1 model.
Rank #2
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The listed water resistance is 100 m for WBY1111.BA0042 and 200 m for each cited chronograph. Those are manufacturer specifications, not a recommendation to use a watch for any particular activity. Check the guidance for the exact reference and have water resistance maintained as the manufacturer directs.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchHow does the Solargraph’s light charging work?
For WBY1111.BA0042, TAG Heuer states that a full charge provides up to 10 months of autonomy and that one minute of light exposure can power the watch for a full day. The brand also lists a battery lifespan of up to 15 years for TH50-00. These are manufacturer claims, not independent test results or guarantees of performance in every wearing and lighting pattern. TAG Heuer’s reference page gives the figures.
Rank #3
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Light charging does not mean the watch is maintenance-free. TAG Heuer’s stated battery lifespan is finite; it does not establish that the watch will never need service.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which type fits your priorities?
- Choose a Solargraph if you want a time-and-date quartz watch that recharges from light and prefer the smaller dimensions of the 38 mm example.
- Consider the quartz chronograph if you want quartz timekeeping with stopwatch functions, including 1/10-second timing and a 30-minute counter in the cited reference.
- Consider the automatic chronograph if you want a mechanical automatic movement with chronograph counters and the cited model’s stated 48-hour power reserve.
Before comparing models or buying, confirm the complete reference number and the current official specification for its dial, case, strap or bracelet, and availability. Solargraph models also come in other configurations, including rubber-strap, black DLC steel, and TH-Polylight versions; the white dial and steel bracelet of WBY1111.BA0042 are not universal Solargraph features. TAG Heuer’s April 2025 Solargraph brochure shows additional configurations.
Quick Recap
Best Value
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Rank #4
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