SRPE37K1 Seiko Prospex anniversary ring ±1 second per day /

±1 second per day / ±15 seconds per month (average)

Function to prevent the GPS signal reception (in-flight mode)

Module 5146

Material: Genuine Leather Strap

The black and gold GA710GB-1A model has an overall shiny finish for a tough and energetic look

SRPE37K1 Seiko Prospex anniversary ring ±1 second per day /Specifications 200m 660 ft diver's Mechanical Movement Caliber Number 4R35 Movement Type Automatic with manual winding Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite Lumibrite on hands, indexes and bezel Clasp Three fold clasp with secure lock , push button release with extender Other Details Water Resistance 200m 660ft diver's Case Size