Tissot PRX Powermatic 80: Specs, 35mm vs 40mm, Colors

Few watches have sparked as much conversation among affordable automatic enthusiasts as the Tissot PRX Powermatic 80. With an 80-hour power reserve and a design that channels the 1970s, it has become a go-to choice for anyone looking for a Swiss automatic under €800.

Power reserve: 80 hours ·
Case diameter: 40 mm (also 35 mm) ·
Movement: Powermatic 80 automatic ·
Water resistance: 100 m (330 ft) ·
Crystal: Scratch-resistant sapphire

The table below gathers the core technical specifications across the PRX Powermatic 80 range — six key figures that define what this watch actually offers.

What is the Tissot PRX Powermatic 80?

The Tissot PRX Powermatic 80 is an integrated-bracelet sports watch that revives the brand’s 1970s design language with a modern automatic movement at its heart. It uses the Powermatic 80 caliber, a modified ETA 2824-2 family movement that delivers 80 hours of power reserve (Quill & Pad).

Powermatic 80 movement details

• Movement family: ETA C07.111, based on the ETA 2824-2 but with a lower frequency (3 Hz) and a larger mainspring for extended power reserve (aBlogtoWatch).
• 23 jewels, automatic winding, date function at 3 o’clock (Tissot).
• Not COSC certified; typical accuracy is within manufacturer tolerances of around ±15 s/d.

Design inspired by the 1970s

The PRX’s case and bracelet form a seamless, integrated silhouette that echoes the Gémeaux and other late-1960s/early-1970s Tissot references. The tonneau-shaped case, stepped bezel, and H-link bracelet with quick-release spring bars are defining visual cues (Monochrome Watches).

Key specifications summary

• Case: 316L stainless steel, 40mm or 35mm diameter, 10.9–11.3mm thick, 100m water resistance (Hodinkee).
• Crystal: Scratch-resistant sapphire with antireflective coating (Tissot).
• Bracelet: Integrated stainless steel with quick-release system and folding clasp with safety pushers.

What sizes does the Tissot PRX Powermatic 80 come in?

The PRX Powermatic 80 is offered in two case diameters — 40mm and 35mm — each with distinct proportions and dial line-ups. Here’s a head-to-head comparison.

35mm vs 40mm: which fits your wrist?

The 40mm version wears like a classic midsize sports watch — suitable for average to larger wrists (7–7.5 inches). The 35mm, with its 39mm lug-to-lug, is more vintage in feel and works well on slimmer wrists (6.5 inches and under). Both share the same 100m water resistance and sapphire crystal.

Case thickness and lug-to-lug

Despite the larger diameter, the 40mm is only 0.4mm thicker than the 35mm. The 35mm’s shorter lug-to-lug (39mm vs ~43mm estimated for the 40mm) makes it noticeably more compact on the wrist.

Available bracelet options

• Both sizes come on an integrated stainless steel bracelet with quick-release links (Tissot).
• A rubber strap option is available for some references.
• The 35mm bracelet tapers more aggressively, suiting the smaller case.

Bottom line: Choose the 40mm if you prefer a modern sports-watch presence. Choose the 35mm for a vintage-inspired, more versatile fit that works on almost any wrist size.

Which dial colors are available?

The colour palette has expanded significantly since the 2021 launch. Five main families exist across the two case sizes.

Gold PVD and two-tone options

• 40mm: Silver dial with gold PVD bezel and rose-gold accents (Monochrome Watches).
• 35mm: Full gold PVD case with champagne dial (Hodinkee).

Ice blue dial

Exclusive to the 35mm range, the ice blue dial has a sunburst finish that shifts from pale blue to grey in different light. It is one of the most requested colourways from enthusiasts (Hodinkee).

Green and black dials

• Green: Available on the 35mm model, a deep forest green with sunburst effect.
• Black: Offered on both 40mm and 35mm, a classic matte black with applied indices.
• Blue: Available on both sizes, a vibrant blue sunburst dial (aBlogtoWatch).

Special ‘Fields’ edition

A limited-run ‘Fields’ variant with a matte olive-green dial and orange accents was released in 2024. Exact production numbers are undisclosed, making it a collector-favoured piece.

Five dials, one pattern: every PRX Powermatic 80 dial uses sapphire crystal and a date window at 3 o’clock. The choice comes down to whether you prefer the vintage warmth of gold PVD, the contemporary pop of ice blue, or the stealthy neutrality of black.

Is the Tissot PRX Powermatic 80 worth its price?

With a typical retail price of €650–€800 in Ireland and Europe, the PRX Powermatic 80 sits in a competitive segment. Is the value proposition solid?

Price range in Ireland and Europe

• Black/blue 40mm: ~€650 (Monochrome Watches).
• Gold PVD 40mm: ~€690 (Monochrome Watches).
• 35mm models: typically €700–€750.
• Irish retailers (Weir & Sons, watchesinly.com) list from €750 to €800 with the 2-year warranty.

Value compared to competitors

• Seiko Presage Automatic: ~€500–€700, but lacks 80h power reserve and sapphire crystal standard.
• Hamilton Khaki Field Automatic: ~€600, no integrated bracelet.
• Certina DS Action Diver: ~€700, but bulkier.
• The PRX’s integrated bracelet and 80h power reserve give it a unique proposition in this price band.

Long-term reliability and service

Service costs for the Powermatic 80 are standard for an ETA-based movement (approx. €150–€250 every 4–5 years). Tissot offers a 2-year international warranty. Parts are plentiful due to the movement’s broad adoption across Swatch Group brands.

Bottom line: For a buyer in Ireland looking at Swiss automatics under €800, the PRX Powermatic 80 offers the strongest power-reserve-to-cost ratio. The catch is the lack of screw-down crown and the 2-year warranty, but those are minor trade-offs for the overall package.

How accurate is the Powermatic 80 movement?

The Powermatic 80 is not COSC certified, but its real-world accuracy is well documented by owners and reviewers.

Specifications of Powermatic 80

• Frequency: 21,600 vph (3 Hz) – lower than the 28,800 vph of the standard ETA 2824-2, which reduces wear and extends power reserve (Quill & Pad).
• 23 jewels, Nivachron hairspring for anti-magnetic resistance.
• Power reserve: 80 hours confirmed by Tissot (Tissot).

Real-world accuracy reports

Owner reports on forums typically show –5 to +15 seconds per day in daily wear. Some specimens achieve ±5 s/d after regulation. The movement is not as consistently accurate as a COSC-certified caliber, but it holds its own against competitors at the price point.

Comparison to standard ETA movements

• Standard ETA 2824-2: 38h power reserve, 28,800 vph, COSC optional.
• Powermatic 80: 80h power reserve, 21,600 vph, no COSC, but uses plastic escapement parts in some versions (modern Powermatic 80 uses a mix of metal and synthetic components).
• The trade-off is clear: you trade chronometer-level precision for two full days of extra autonomy.

The pattern: choose the Powermatic 80 for weekend convenience over chronometer-grade precision — a trade-off many daily wearers find easy to accept.

The Tissot PRX Powermatic 80 doesn’t try to be everything. It delivers a specific, pragmatic promise: a well-finished Swiss automatic that can sit idle for a weekend and still be ready to wear Monday morning. For the buyer in Ireland who wants a daily driver with vintage flair and modern reliability, the decision is clear: pick your size and dial colour, and you’ll have a watch that outlasts its competitors in the one metric that matters most to everyday use.

For a detailed look at the watch’s everyday performance, check out this Tissot PRX Powermatic 80 review from Angle UK.

Frequently asked questions