# Tissot Le Locle Open Heart Review by A.I. WatchMetrics

## Watch Summary
The Tissot Le Locle Open Heart is a classic Swiss dress watch blending timeless elegance with a subtle mechanical reveal, featuring a 39mm stainless steel case, opaline silver dial adorned with Roman numerals and a signature open heart window at 12 o'clock showcasing the beating balance wheel of its automatic movement, ideal for the discerning professional seeking refined style without ostentation; powered by the reliable ETA 2824-2 automatic caliber with 38 hours of power reserve.

## Overall Watch Rating: 5.3/10.0

**Dials & Design Metric (8.5/10.0)** - The guilloche-textured dial, Roman numerals, and open heart flourish deliver sophisticated charm comparable to entry-level Longines dress pieces.
**Material Metric (8.0/10.0)** - Stainless steel construction paired with a sapphire crystal offers robust everyday durability on par with Oris divers at this price point.
**Versatility Metric (6.5/10.0)** - Suited primarily for formal and office wear with some casual crossover, it mirrors the adaptability of a Hamilton Jazzmaster.
**History & Innovation Metric (6.2/10.0)** - Tissot's 170-year heritage and the Le Locle line's nod to Swiss watchmaking roots provide solid provenance akin to mid-tier Certina models.
**Movement Metric (6.2/10.0)** - The workhorse ETA 2824-2 with open heart modification delivers consistent performance similar to standard Seiko automatics.
**Brand Metric (5.3/10.0)** - Tissot upholds Swatch Group reliability in the mid-tier segment, much like Citizen's mechanical offerings.
**Rarity Metric (3.6/10.0)** - Common production and accessible pricing place it in the same abundant league as most Tag Heuer Formulas.
**Complications Metric (1.5/10.0)** - Lacking traditional complications beyond the open heart display, it trails behind even basic date-equipped Nomos watches.
**Functions Metric (2.0/10.0)** - Limited to hours, minutes, and seconds, it underperforms relative to peers like the Tissot PRX with added date functionality.

## Total Performance Score (TPS): 9.9

## WM Collector Grade: A+

## Performance Insights: Strong materials and design elevate this affordable dress watch, while simplicity in functions and rarity keeps it grounded, delivering excellent value well above its $650 implied price equivalent of $1,450.

## TPS Interpretation: Superior Value: The watch overdelivers on elegant design and build quality for its modest price, making it a smart pick for entry-level enthusiasts.

## Watch Data
[https://www.tissotwatches.com/media/catalog/product/cache/8d54d52f20e6c731c1b7f8f6f7f7f7f7/t/0/t0064071103800_1_1.jpg] - [https://www.tissotwatches.com/media/catalog/product/cache/8d54d52f20e6c731c1b7f8f6f7f7f7f7/t/0/t0064071103800_back.jpg]; [none] - [none]; [none] - [none]; [Le Locle Open Heart] - [Tissot Le Locle Open Heart]; [Tissot] - [Tissot]; [Le Locle Open Heart] - [Le Locle Open Heart]; [Switzerland] - [Switzerland]; [https://www.tissotwatches.com/en-us/le-locle-open-heart-t0064071103800.html] - [https://www.tissotwatches.com/en-us/le-locle-open-heart-t0064071103800.html]; [https://www.hodinkee.com/articles/tissot-le-locle-open-heart-hands-on] - [https://www.hodinkee.com/articles/tissot-le-locle-open-heart-hands-on]; [Automatic] - [Automatic]; [ETA 2824-2] - [ETA 2824-2]; [0] - [0]; [Classic Swiss dress watch with open-heart skeleton view revealing the balance wheel, Roman numeral indices, and elegant opaline dial for refined daily wear.] - [Classic Swiss dress watch with open-heart skeleton view revealing the balance wheel, Roman numeral indices, and elegant opaline dial for refined daily wear.]; [39] - [39]; [47.9] - [47.9]; [9.65] - [9.65]; [20] - [20]; [30] - [30]; [38] - [38]; [28800] - [28800]; [minimal] - [minimal]; [25] - [25]; [stainless steel] - [stainless steel]; [sapphire] - [sapphire]; [fixed] - [fixed]; [solid] - [solid]; [standard] - [standard]; [leather] - [leather]; [round] - [round]; [opaline silver] - [opaline silver]; [yes] - [yes]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [yes] - [yes]; [yes] - [yes]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [9.9] - [9.9]; [A+] - [A+]; [1450] - [1450];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**