Master Craftsman

The Longines Master 42mm Automatic Mechanical series is produced by AF.
Movement type: Three-hand half-month automatic mechanical
Case material: Stainless steel, thickness 11.2mm
Dial material: White "grain" pattern, gold polished hands.
Glass material: Anti-scratch synthetic sapphire
Band material: Stainless steel strap, black leather strap, brown leather strap.
Clasp material: Stainless steel, three-fold safety push-button clasp
Waterproof performance: 30 meters
Functions: Date display, moon phase