I have never seen one of these bracelets with this wording before.
This bracelet says in latin SEMPER FIDELIS - 'always faithful'
As you can see the bracelet comprises two rows of 9 carat curb link chain applied with 9 carat gold cut out letters and a box clasp with gold safety chain.
 
The box clasp is stamped 9ct which is a clue that this bracelet is Early 20th Century/Edwardian.
measures - 7" inner circumference (will feel like 6.5")
10mm wide
weighs - 7.8g
Makers Mark - HG & S
9 carat gold in a lovely yellow gold
English circa 1910
Condition - excellent