Speake-Marin One & Two Openworked Tourbillon Volant

~$80,457 · 1 CHF = 1.234 USD (2026-07-22)

Year

2020

Category

Chronométrie

Reference

414211250

Case

ø 42 mm · Titane

Material

Titanium

Dial

Skeleton/Openworked

Movement

Mécanique à remontage automatique Réserve de marche: 72 h, 21600 alt/h

Water resistance

30 m

Price tier

$50K–$100K

Country

🇨🇭 Switzerland

One&Two OPENWORKED TOURBILLON TITANIUM The latest watch in the One&Two Openworked collection houses a proprietary Speake-Marin movement with a Tourbillon positioned at 1:30. The new SMA05 Calibre is part of the SMA movement family. By positioning the tourbillon cage at 1:30, Speake-Marin remains the only watchmaker to position its tourbillon in this location, a true construction constraint for the movement. The tourbillon cage is covered by the black Speake-Marin rotor to echo the brand's logo symbol. Speake-Marin has chosen to develop a 3Hz (21,600 alt/h) movement so that the tourbillon's alternations can be easily seen with the naked eye. The