For a first necklace
Look at the accessories he already chooses: watch finish, rings, belt hardware and any chain he wears. A modest-width chain is a useful starting point when he enjoys restrained detail. It avoids choosing a prominent motif on his behalf.
Length still matters. A fine 70 cm chain creates a different look from the same design at 50 cm. Compare against a necklace he likes, or measure a cord at the intended position before selecting a length.












