T & T Time Services on Adams Avenue in Normal Heights, San Diego, is a watch and clock repair shop that has operated from 3431 Adams Ave near Hawley Blvd since 1991. Founded by Yen Tran, the one-person operation handles battery replacements, crystal and case-back repairs, band adjustments, link removal, and full movement overhauls on both vintage and modern timepieces. The 92116 shop also services grandfather clocks, mantel clocks, and wall clocks, and the retail side carries gold jewelry, pearl necklaces, diamond pieces, and estate jewelry — an accessories inventory that crosses over into the antique and secondhand markets served by vintage retailers such as La Loupe Vintage on the same corridor. The shop handles watch-band replacements and strap sourcing for discontinued models, a service category that draws customers from across San Diego when standard-issue bands no longer match their cases. Adams Avenue's independent retail stretch supports a concentration of specialty repair and artisan shops, and the timepiece and jewelry repair niche at T & T overlaps with the custom and estate jewelry work done at GQ Jewelers & International Timepieces in neighboring North Park. Tran's onsite repair turnaround means most battery swaps and band adjustments complete during the same visit.