callahan-NO TRADES- Custom Seiko automatic dive-watch, patina mod featuring a vintage military MilSub inspired design, black dial, warm-tone hour markers, black rotating bezel and black NATO-style strap. Specifications: • 39.5 mm stainless-steel case • 13.5 mm case thickness • 20 mm lug width • Flat sapphire crystal • Regulated Seiko NH-series automatic movement • Black rotating dive bezel • Black NATO\-style strap
