Rolex brand

Sunday Calendar Series

Automatic mechanical movement type

3255 movement model

40mm dial

18k gold watch case material

Basic Information Number: m228238-0007 Brand: Rolex Series: Day-Date Movement Type: Automatic Gender: Men’s Movement Model: 3255 Movement Type: Automatic Manufacturer: Rolex Balance Wheel: Extra Large Inertia, Fine Adjustment, Balance Wheel Frequency: 28,800 rpm Oscillations per Hour: Hairspring: Paramagnetic Blue: Parachrom Hairspring: Shock-resistant High-performance Paraflex Shock-absorbing device, 31 jewels, 70-hour power reserve, Swiss Official Chronometer Testing Institute (COSC) certification. Case diameter: 40mm, Case thickness: Not available, Dial color: Black, Dial shape: Round, Strap color: Gold, Clasp type: Concealed folding crown buckle, Case back: Solid, Weight: Not available, Water resistance: 100 meters, Hour markers: Bat markers, Luminous, Clasp spacing: Not available, Lug spacing: Not available. Materials: Case material: 18k gold, Dial material: Quilted, Bezel material: Outer ring knurled, Crystal material: Scratch-resistant sapphire crystal, Crown material: Screw-down Twinlock double waterproof system, Strap material: 18k gold, President type, three-link arched clasp material: 18k gold. Functions: Date display, Day display.