Longines 18.69 N blue alloy mainspring #770 with T-end | eBay
TIGE REMONTOIR MONTRE LONGINES 17.69Z 18.69N 18.69Z 19.75N
Longines - 18.69N pocket watch NO RESERVE PRICE - Homme - 1901-1949 - Catawiki
Longines silver (.925) lever pocket watch, import hallmarks London 1910, unsigned cal. 18.69N 7 jewel movement, with compensated balance and regulator, no. 2433247, the dial with Roman numerals, minute track and subsidiary