Seiko Prospex Prospex Marinemaster HBF001

Marinemaster 1968 Heritage Diver's Watch

Movement

• Caliber Number: 8L45
• Movement Type: Automatic with manual winding
• Precision: +10 to -5 seconds per day
• Power reserve: Approx. 72 hours(3 days)
• Jewels: 35
• Functions: 28,800 vibrations per hour (8 beats per second), Stop second hand function, Date display

Case/Band

• Case Material: Stainless steel (Bezel: Stainless steel with ceramic display)
• Case Size: Thickness:14.1mm, Diameter:42.6mm, Lug-to-lug:49.3mm
• Crystal: Dual-curved sapphire crystal
• Crystal Coating: Anti-reflective coating on inner surface
• LumiBrite: LumiBrite on hands, index(es) and bezel
• Clasp: Three-fold clasp＆push button release, solid & slide adjuster
• Distance between lugs: 20

Other Details

• Water Resistance: 300m / 1000ft diver's
• Magnetic Resistance: 4,800 A/m
• Features: Unidirectional rotating bezel, Screw-down crown, Screw case back