The monthly statistics show signs of a recovery, noted Bernstein analysts.
The expansion project comes as Swiss watch exports continue to decline.
China was a bright patch, with a 16.1 percent decline over the month.
A 43.2 percent decline in volumes represents the market situation better, said Federation of the Swiss Watch Industry.
Volumes dipped below the level seen in the crisis year 2009.
Exports to mainland China rose 17.6 percent, offering evidence that luxury purchases are shifting to other markets.
Sales to Hong Kong, the industry’s largest market, have slowed since late last year.
Pricey watches helped offset the ongoing decline of cheaper timepieces.
Stockpiling before Brexit, and the sales of bi-metal and precious metal watches helped boost the rise.
Growth from the U.S. market helping to offset a decline in sales to China.
Sales of timepieces in China and Europe were down for the month.
The company will present a new product featuring an automatic movement from Kenissi at Baselworld in March this year.
Growth in exports of high-end watches offset a decline in less expensive timepieces.
High-end time pieces led growth while exports of watches priced under 200 Swiss francs declined.
Exports were down for the first time in 18 months, casting further doubt on the health of the luxury sector.