Watchatlas

Arnold & Son / UTTE (Ultra Thin Tourbillon)

Arnold & Son UTTE (Ultra Thin Tourbillon)

Collection profile · 2013

Arnold & Son’s UTTE, now presented as Ultrathin Tourbillon, is the brand’s ultra-thin flying tourbillon family, first launched in 2013 and defined by an off-centred display, marine-chronometer-inspired layout, and one of the slimmest hand-wound tourbillon calibres of its era.

Why it matters

UTTE is one of Arnold & Son’s defining modern statements because it combined genuine record-level slimness, a marine-chronometer-inspired dial architecture, and a long 100-hour reserve in an elegant flying-tourbillon format that remains central to the brand’s chronometry narrative.

Key references

1UTBX.F01A.C208A

Ultrathin Tourbillon Platinum — Current official platinum model with 41.5 mm case, A&S8300 calibre, 2.97 mm movement thickness, and limited run of 28 pieces.

1UTBR.U01A.C209A

Ultrathin Tourbillon Red Gold — Current official red-gold variant using the A&S8300 calibre with cosmic grené dial treatment and 100-hour power reserve.

1UTBX.Z01A.C245X

Ultrathin Tourbillon Skeleton Platinum — Current official skeletonized platinum model with A&S8320 calibre, 3.3 mm movement thickness, 41.5 mm case, and limited run of 28 pieces.

Collection timeline

  • 2013 — UTTE debuted at Baselworld 2013 as Arnold & Son’s Ultra Thin Tourbillon Escapement and was presented by watch media as the thinnest tourbillon wristwatch then available.
  • 2016 — Arnold & Son expanded the platform with the UTTE Skeleton, extending the family from a record-setting ultra-thin tourbillon into an openworked high-horology sub-line.
  • 2023 — The brand’s current official collection architecture presents the family under the name Ultrathin Tourbillon, with refreshed red-gold, platinum, and skeleton variants.
  • 2026 — The live official collection page still positions Ultrathin Tourbillon as one of the slimmest in the world and a core Chronometry collection within the brand.

FAQ

What does UTTE stand for?

UTTE stands for Ultra Thin Tourbillon Escapement, the original name used when Arnold & Son launched the collection in 2013.

Is UTTE still the collection name today?

Arnold & Son’s current official site presents the family under the name Ultrathin Tourbillon, but watch media and collectors still commonly refer to the original platform as UTTE.

Official collection ↗

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  • HM Perpetual Moon — Arnold & Son Perpetual Moon is the brand's astronomy-focused moon-phase collection, spanning 41.5 mm and 38 mm precious-metal references with large moon displays.
  • Constant Force TourbillonArnold & Son Constant Force Tourbillon 11 Yellow Gold movement view — Arnold & Son’s Constant Force Tourbillon line is a chronometry-led high-complication family combining a patented constant-force mechanism, dead-beat seconds and a tourbillon regulator, explicitly tying modern wristwatch construction to John Arnold’s marine-chronometer legacy and his historical link with Abraham-Louis Breguet.
  • TB88 — The TB88 is Arnold & Son’s 2012 deadbeat-seconds chronometer, named for its symmetrical “double eight” architecture and built as a modern wristwatch tribute to English marine chronometer construction associated with John Arnold.
  • Longitude — Longitude is Arnold & Son’s chronometry-led sports watch family, explicitly inspired by John Arnold’s marine chronometers and the historical quest to calculate longitude at sea, with COSC-certified manufacture movement A&S6302, a 42.5 mm titanium case, and power-reserve plus large small-seconds display.

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