Movemen

• Caliber Number: 5R66
• Movement Type: Spring Drive
• Precision: ±15 seconds per month (±1 second per day)
• Power reserve: Approx. 72 hours(3 days)
• Jewels: 30
• Functions:

• 24-hour hand (dual time display function)
• Power reserve indicator
• Calendar-linked time difference adjustment function
• Stop second hand function
• Date display

Case/Band

• Case Material: Titanium (super-hard coating)
• Case Size:

• Thickness: 14.7mm
• Diameter: 44.8mm
• Lug-to-lug: 50.9mm
  
  
• Crystal: Sapphire crystal
• Crystal Coating: Super-clear coating
• LumiBrite: LumiBrite on hands and index(es)
• Band Material: Calfskin
• Clasp: Three-fold clasp with push button release
• Distance between lugs: 22

Other Details

• Water Resistance: 20 bar
• Weight: 106.0g
• Features:
• Rotating compass bezel
• Screw-down crown
• Three-fold clasp with secure lock
• Screw case back

The Seiko SNR027 Prospex LX watch exemplifies precision and durability, powered by the innovative Caliber 5R66 Spring Drive movement. With an impressive accuracy of ±15 seconds per month and a robust power reserve of approximately 72 hours, this model is designed for the discerning adventurer. Crafted from super-hard titanium, its 44.8mm case is both lightweight and resilient, complemented by a sapphire crystal with super-clear coating. Features such as a dual time display, power reserve indicator, and rotating compass bezel enhance functionality, while waterproof to 20 bar, it stands ready for any challenge. A stylish calfskin band completes this remarkable timepiece.