Tissot Gentleman Open Heart watch

Tissot Gentleman Open Heart

Tissot Gentleman · Ref. T127.407.16.031.01

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.

In-Depth Review

# The Gentleman Open Heart: Accessible Mechanical Theater

Tissot's decision to integrate an open heart window into the Gentleman collection demonstrates how even Swiss entry-level watches can deliver genuine horological substance. The open heart complication—exposing the oscillating balance wheel through a cutout on the dial—transforms what could be a basic dress watch into a conversation piece that rewards close inspection. Powered by the Powermatic 80 movement, an ETA caliber offering an impressive 80-hour power reserve, this watch proves that mechanical sophistication need not command premium prices. The 40mm stainless steel case strikes an appropriate balance between presence and wearability, while the fixed polished bezel and silver dial maintain the restrained aesthetics befitting a dress watch. Swiss manufacture at this price point remains noteworthy, particularly when competing brands rely on Asian production.

The Gentleman Open Heart appeals to watch enthusiasts entering the mechanical category and professionals seeking a refined daily wearer with legitimate complications. The brown leather strap reinforces its versatility across casual and business contexts, while the 100-meter water resistance provides practical assurance without suggesting dive-watch pretensions. Its 10.6mm thickness ensures easy wear beneath shirt cuffs.

Against competitors in the sub-$500 category, this watch faces capable alternatives like the Bulova Automatic Marine Star and Seiko Prospex models. However, the Tissot's combination of visible mechanical movement, genuine Swiss pedigree, and accessible pricing creates a compelling proposition for buyers prioritizing horological substance over brand prestige.

Specifications

Movement

Movement TypeAutomatic
CaliberPowermatic 80 (ETA C07.111)
Power Reserve80 hours
Frequency21,600 vph
Jewels23

Case

Case Diameter40.0mm
Case Thickness10.6mm
Case MaterialStainless Steel
CrystalSapphire
BezelFixed, polished
Dial ColorSilver
Lug Width21mm
Lug-to-Lug47.5mm

Features

Water Resistance100m / 328ft
Bracelet/StrapBrown leather strap
ClaspFolding clasp
Weight76g
Complications
DateOpen Heart (visible balance wheel)

Pricing

Retail (MSRP)
$575
Market Price
$475