About This Watch
The Tissot Gentleman Open Heart adds a window into the mechanical soul of the Powermatic 80 movement, transforming the standard Gentleman dress watch into something more viscerally engaging. The aperture at 12 o'clock reveals the balance wheel oscillating back and forth — the beating heart of the mechanical movement — creating a mesmerizing visual connection between the wearer and the engineering inside. Open-heart designs occupy a unique space in watchmaking: they provide the visual engagement of a skeleton watch without sacrificing dial legibility, and they communicate "mechanical watch" at a glance to even non-watch-enthusiasts. The silver dial provides a clean, luminous backdrop for the balance wheel aperture, with applied baton indices and dauphine hands maintaining the classical Gentleman aesthetic around the dial's periphery. The date window at 3 o'clock adds everyday utility without cluttering the design. Inside, the Powermatic 80 caliber is identical to the standard Gentleman — 80-hour power reserve, Nivachron hairspring, and accuracy that rivals COSC certification — with the added visual bonus of being partially visible from the dial side as well as through the exhibition caseback. The brown leather strap on this reference adds warmth and vintage character that complements the silver dial and the romantic notion of a visible mechanical heartbeat. At $575, the Gentleman Open Heart occupies a sweet spot between pure dress watch and horological conversation piece. It is the watch to buy for someone who appreciates mechanical watchmaking not merely as a timekeeping methodology but as a form of miniature engineering art visible on the wrist throughout the day. Few watches at any price communicate the wonder of mechanical movement as effectively as a well-executed open heart, and Tissot's version does so at a remarkably democratic price.
Specifications
Movement
| Movement Type | Automatic |
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| Caliber | Powermatic 80 (ETA C07.111) |
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| Power Reserve | 80 hours |
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| Frequency | 21,600 vph |
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| Jewels | 23 |
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Case
| Case Diameter | 40.0mm |
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| Case Thickness | 10.6mm |
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| Case Material | Stainless Steel |
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| Crystal | Sapphire |
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| Bezel | Fixed, polished |
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| Dial Color | Silver |
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| Lug Width | 21mm |
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| Lug-to-Lug | 47.5mm |
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Features
| Water Resistance | 100m / 328ft |
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| Bracelet/Strap | Brown leather strap |
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| Clasp | Folding clasp |
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| Weight | 76g |
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| Complications | DateOpen Heart (visible balance wheel) |
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