Seiko Prospex SLA065 Underwater Research Astrolabe 62Mas Limited Edition Bulova Caliber Number: 6R27

Caliber Number: 6R27

Flash Alert: Flashes with buzzer that sounds for alarms

making it suitable to fit over a wet suit when needed

with crown protection

Seiko Prospex SLA065 Underwater Research Astrolabe 62Mas Limited Edition Bulova Caliber Number: 6R27Save the Ocean Limited Edition 1965 Diver's Modern Re interpretation Limited edition of 1,300 pieces Caliber Number: 8L35 Movement Type: Automatic with manual winding Precision: +15 to 10 seconds per day Power Reserve: Approx. 50 hours Jewels: 26 Case Band Case Material: Stainless steel (super hard coating) Case Size Thickness: 13. 1mm Diameter: 41. 3mm Lug to lug: 47. 6mm Crystal: Dual curved sapphire crystal Crystal Coating: Anti reflective coating