Question: Poljot produced the world's first space watch, that was worn by what Soviet cosmonaut who was the first human to journey to outer space?

Context paragraphs:
Kerim Kerimov: Lieutenant-General Kerim Aliyevich Kerimov (Azerbaijani: "Kərim Əli oğlu Kərimov" , Russian: Керим Алиевич Керимов ; 1917–2003) was an Azerbaijani-Soviet/Russian aerospace engineer and a renowned rocket scientist, one of the founders of the Soviet space industry, and for many years a central figure in the Soviet space program.  Despite his prominent role, his identity was kept a secret from the public for most of his career.  He was one of the lead architects behind the string of Soviet successes that stunned the world from the late 1950s – from the launch of the first satellite, the Sputnik 1 in 1957, and the first human spaceflight, Yuri Gagarin's 108-minute trip around the globe aboard the Vostok 1 in 1961, to the first fully automated space docking, of Cosmos 186 and Cosmos 188 in 1967, and the first space stations, the Salyut and Mir series from 1971 to 1991.

Yuri Gagarin: Yuri Alekseyevich Gagarin (Russian: ; ] ; 9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut.  He was the first human to journey into outer space, when his Vostok spacecraft completed an orbit of the Earth on 12 April 1961.

Gagarin (disambiguation): Gagarin may refer to Soviet cosmonaut Yuri Gagarin (1934–1968), the first man to travel in outer space.

Soviet space program: The Soviet space program (Russian: Космическая программа СССР, "Kosmicheskaya programma SSSR") comprised the rocketry and space exploration programs conducted by the former Soviet Union (USSR) from the 1930s until its dissolution in 1991.  Over its sixty-year history, this primarily classified military program was responsible for a number of pioneering accomplishments in space flight, including the first intercontinental ballistic missile (R-7), first satellite (Sputnik 1), first animal in Earth orbit (the dog Laika on Sputnik 2), first human in space and Earth orbit (cosmonaut Yuri Gagarin on Vostok 1), first woman in space and Earth orbit (cosmonaut Valentina Tereshkova on Vostok 6), first spacewalk (cosmonaut Alexey Leonov on Voskhod 2), first Moon impact ("Luna 2"), first image of the far side of the moon ("Luna 3") and unmanned lunar soft landing ("Luna 9"), first space rover ("Lunokhod 1"), first sample of lunar soil automatically extracted and brought to Earth ("Luna 16"), and first space station (Salyut 1).  Further notable records included the first interplanetary probes: Venera 1 and Mars 1 to fly by Venus and Mars, respectively, Venera 3 and Mars 2 to impact the respective planet surface, and Venera 7 and Mars 3 to make soft landings on these planets.

Outer space (mathematics): In the mathematical subject of geometric group theory, the Culler–Vogtmann Outer space or just Outer space of a free group "F" is a topological space consisting of the so-called "marked metric graph structures" of volume 1 on "F".  The Outer space, denoted "X" or "CV", comes equipped with a natural action of the group of outer automorphisms Out("F") of "F".  The Outer space was introduced in a 1986 paper, of Marc Culler and Karen Vogtmann and it serves as a free group analog of the Teichmüller space of a hyperbolic surface.  Outer space is used to study homology and cohomology groups of Out("F") and to obtain information about algebraic, geometric and dynamical properties of Out("F"), of its subgroups and individual outer automorphisms of "F".  The space "X" can also be thought of as the set of "F"-equivariant isometry types of minimal free discrete isometric actions of "F" on "F" on R-trees "T" such that the quotient metric graph "T"/"F" has volume 1.

Yury Romanenko: Yury Viktorovich Romanenko (Russian: Ю́рий Ви́кторович Романе́нко , "Jurij Viktorovič Romanenko"; born August 1, 1944) is a former Soviet cosmonaut, twice Hero of the Soviet Union (March 16, 1978 and September 26, 1980).  Over his career, Yury Romanenko spent a total of 430 days 20 hours 21 minutes 30 seconds in space and 18 hours in space walks.  In 1987 he was a resident of the Mir space station, launching on Soyuz TM-2 and landing aboard Soyuz TM-3.  He remained on Mir for 326 days that was the longest stay in space at that time.  His son, Roman Romanenko is also a cosmonaut, and has become the third second-generation space traveler on Soyuz TMA-15 in May 2009.

Poljot: Poljot (Russian: Полёт , literally meaning "flight"), is a brand of Soviet/Russian wristwatches, produced since 1964 by the First Moscow Watch Factory (Russian: Первый Московский Часовой Завод, ПМЧЗ , "Perviy Moskovskiy Chasovoy Zavod").  The flagship brand of the USSR's watch industry, Poljot produced numerous historical watches used in many important space missions, including the world's first space watch worn by Yuri Gagarin.

Abdul Ahad Mohmand: Abdul Ahad Mohmand (Pashto: عبدالاحد مومند‎ ; born January 1, 1959) is a former Afghan Air Force aviator who became the first Afghan citizen and fourth Muslim to journey to outer space.  He became one of Soyuz TM-6 crew members and spent nine days aboard the Mir space station in 1988 as an Intercosmos Research Cosmonaut.  He became the fourth Muslim to visit outer spaces, after Sultan bin Salman Al Saud, Muhammed Faris, and Musa Manarov.  During this mission, Abdul Ahad Mohmand was the first cosmonaut to use Pashto language after he made a telephone call to Afghanistan.  Mohmand is also believed to be the first Muslim who took the Qur'an to space.

Georgy Dobrovolsky: Georgiy Timofeyevich Dobrovolsky (Russian: Гео́ргий Тимофе́евич Доброво́льский ; June 1, 1928June 30, 1971) was a Soviet cosmonaut who served on the three-man crew of the Soyuz 11 spacecraft.  They became the world's first space station crew aboard Salyut 1, but died in space due to asphyxiation due to an erroneously opened valve.  They were the first and, as of 2017, the only humans to have died in space.

Vostok 1: Vostok 1 (Russian: Восто́к , "East" or "Orient" 1) was the first spaceflight of the Vostok programme and the first manned spaceflight in history.  The Vostok 3KA space capsule was launched from Baikonur Cosmodrome on April 12, 1961, with Soviet cosmonaut Yuri Gagarin aboard, making him the first human to cross into outer space.

Supporting paragraphs: Poljot Yuri Gagarin
Answer: Yuri Alekseyevich Gagarin