Seiko Prospex Titanium 44.8 MM Spring Drive GMT Black IP Watch - SNR027J1 Seiko and masking processes

and masking processes

the original full metal take on the first-ever G-SHOCK

push button release with extender

and there are four stars for 40 on the band loop

counter hands and tachymeter scale background are in white

Seiko Prospex Titanium 44.8 MM Spring Drive GMT Black IP Watch - SNR027J1 Seiko and masking processesMovement Caliber Number: 5R66 Movement Type: Spring Drive Accuracy: 15 seconds per month (1 second per day) Duration: Approx. 72 hours(3 days) Exterior Case Material: Titanium (super hard coating) Crystal: Sapphire crystal Crystal Coating: Super clear coating LumiBrite: Lumibrite on hands and index(es) Water Resistance: 20 bar Case Size Thickness: 14. 7 Diameter: 44. 8 Length: 50. 9 Other Specifications Rotating compass bezel Screw case back Screw