SEIKO-Prospex Sea SFK001 lab created A high-performance automatic sports chronograph

A high-performance automatic sports chronograph in high-tech ceramic and stainless steel

6 slots for credit cards

Its new pure geometric inner design enhances the essence of functionality

Blue uni-directional rotating elapsed timing bezel

Each Khaki Field Mechanical Bronze has a unique story that will unfold with each wear as its case develops a distinct patina over time

SEIKO-Prospex Sea SFK001 lab created A high-performance automatic sports chronographCaliber Number 5K65 Movement Type Solar Precision 15 seconds per month Jewels 3 Functions Overcharge prevention function Quick start function 24 hour hand (dual time display function) Calendar linked time difference adjustment function Date display Case Band Case Material Stainless steel Case Size Thickness: 13. 2mm Diameter: 45. 0mm Lug to lug: 51. 8mm Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite