TAG Heuer In-House Calibres

TAG Heuer's movement history has two distinct phases: the era of outsourced calibres, and the era of claimed in-house production. The boundary between them is not clean. The Calibre 11 in 1969 was a consortium product — manufactured by Büren and Dubois-Dépraz, not by Heuer. The Calibre 1887 in 2010 was marketed as in-house but built on a Seiko platform. The Calibre Heuer 01 in 2015 was genuinely manufactured in TAG Heuer's facilities, though its base architecture retained the SII lineage. The Calibre Heuer 02 in 2017 delivered the specification — 80-hour power reserve, column wheel, COSC certification — that the in-house programme had been working towards.

The Calibre 11 — 1969

The Calibre 11 was the movement that defined TAG Heuer's chronograph identity and remains the most historically significant calibre associated with the brand.

The Consortium

The Calibre 11 was not developed by Heuer alone. It was produced through a commercial consortium:

The movement was announced on 3 March 1969 simultaneously with the Monaco watch. It is described as the first automatic integrated column-wheel chronograph to reach commercial production — though Zenith's El Primero, announced on 10 January 1969, was a fully integrated design (rather than modular) running at higher frequency.

Calibre 11 Specifications

The family : The Calibre 11 was the base; related variants included the Calibre 12 (the primary commercial product, also 19,800 vph), Calibre 14 (adds 24-hour display), and Calibre 15 (adds small seconds sub-dial).

The Pre-Manufacture Era — Outsourced Calibres

Between the Calibre 11 consortium era and the 2010 in-house programme, TAG Heuer's movements came from external suppliers:

• Lemania 5100 : Used in some Carrera and Monaco variants in the 1970s–1980s
• ETA 7750 : A widely used automatic chronograph base, used in TAG Heuer references across the 1980s–2000s (Calibre 16 designation)
• ETA 2824-2 : Used in non-chronograph automatics (Calibre 5 designation)

The use of ETA/Valjoux movements was standard practice across the Swiss industry during this period. TAG Heuer designated these calibres with its own numbering (Calibre 5, Calibre 16) without disguising their origins.

Calibre 1887 — 2010

In late 2009 , TAG Heuer announced the Calibre 1887 — named after the year of Edouard Heuer's oscillating pinion patent. It was marketed as an in-house movement, the brand's first significant step beyond outsourced calibres.

The Seiko Controversy

Within days of the announcement, watch enthusiasts identified that the Calibre 1887's architecture bore a strong structural resemblance to the Seiko TC78 platform (used in Seiko's 6S37 calibre), which Seiko Instruments Inc. ( SII ) had developed and patented in 1997 .

The facts, as subsequently acknowledged:
- TAG Heuer had purchased exclusive manufacturing rights for Europe from SII in 2006
- The Calibre 1887 was manufactured in TAG Heuer's Le Locle facility using the SII-derived architecture
- TAG Heuer made modifications to the movement after acquiring the rights

TAG Heuer's position (stated by then-CEO Jean-Christophe Babin): the company had purchased the intellectual property, made substantial modifications, and manufactured the movement entirely in Switzerland — qualifying it as Swiss Made. The "in-house" claim was defended on manufacturing-location grounds rather than original-design grounds.

Collector opinion has never fully resolved the controversy. The Calibre 1887 delivered a column-wheel automatic chronograph in an attractive 28,800 vph specification, visible through a skeleton bridge with a blued column wheel — a legitimate product. Its architectural origin remained an open question.

Calibre 1887 Specifications

• Type : Automatic, column wheel
• Frequency : 28,800 vph (4 Hz)
• Power reserve : ~42 hours
• Visible features : Column wheel (blued on early examples), skeleton chronograph bridge

Calibre Heuer 01 — 2015

The Calibre Heuer 01 was introduced at Baselworld 2015 in the Carrera Calibre Heuer 01. TAG Heuer called it "the first fully in-house calibre" — accurate in the sense that it was manufactured entirely in TAG Heuer's facilities. It retained the base architecture inherited from the SII platform, though with further development and visual redesign.

The visual changes from the 1887 were deliberate: the blued column wheel became red-anodised, the skeleton bridge was redesigned, and the rotor received a black coating. These changes gave the Heuer 01 a distinctive appearance that differentiated it from the 1887 in the display caseback.

Calibre Heuer 02 — 2017

The Calibre Heuer 02 is the current primary chronograph calibre — an evolution of the Heuer 01 with a substantially improved power reserve.

The 80-hour power reserve is the headline upgrade — a step change from the Heuer 01's 40 hours and one of the longer power reserves in the automatic chronograph category. The vertical clutch provides smoother chronograph engagement with less hand jump at the moment of start. COSC certification means every movement is individually tested and certified to −4/+6 seconds per day.

The Calibre Heuer 02 powers the current Carrera, Autavia, and Monaco chronograph collections.

Calibre Heuer 02T Tourbillon Nanograph — 2017

The Calibre Heuer 02T is the pinnacle of the current in-house programme: an automatic tourbillon chronograph at a price point that directly challenged the established tourbillon market.

The Nanograph hairspring : TAG Heuer developed a carbon composite hairspring manufactured in-house — termed "Nanograph." Carbon composite hairsprings have several theoretical advantages over traditional steel: they are non-magnetic, immune to temperature variation, and do not require a temperature-compensating alloy. The Nanograph hairspring is produced in TAG Heuer's own facility — a genuine technical development rather than a vendor-supplied component.

The price : At approximately CHF 24,900, the Heuer 02T was positioned as dramatically more accessible than comparable Swiss tourbillons. Most Swiss-brand tourbillons enter the market at CHF 50,000–150,000+. The 02T demonstrated that a functional, COSC-certified tourbillon chronograph could be produced at a substantially lower price when manufacturing efficiency is prioritised over prestige positioning.

Calibre Summary

Frequently Asked Questions

What was the Calibre 11?
A consortium automatic chronograph movement, announced 3 March 1969. Partners: Büren (base movement), Dubois-Dépraz (chronograph module), Heuer-Léonidas and Breitling (commercial). 19,800 vph, 42-hour power reserve, 31mm × 7.7mm, bi-compax layout.

What was the Calibre 1887 controversy?
The Calibre 1887 (2010), marketed as in-house, was identified as architecturally derived from the Seiko SII TC78 platform (1997). TAG Heuer had purchased manufacturing rights from SII in 2006. The movement was manufactured in Switzerland but on a non-original architecture.

What is the Calibre Heuer 02?
TAG Heuer's current in-house automatic chronograph: 28,800 vph, 80-hour power reserve, column wheel, vertical clutch, COSC certified, 39 jewels. Powers the current Carrera, Autavia, and Monaco.

What is the Nanograph hairspring?
A carbon composite hairspring developed and manufactured in-house by TAG Heuer, used in the Calibre Heuer 02T tourbillon. Carbon composite is non-magnetic and temperature-insensitive.

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