Seiko Prospex SNR043 Spring Drive Power Reserve Black Dial Automatic Limited to 200 Pieces Casio G-Shock G-Steel Bluetooth Connected GSTB100-1A 20mm (Ø 40mm) or 21mm

20mm (Ø 40mm) or 21mm (Ø 43mm)

this special duotone edition is born of a revolution in color design

To achieve the crisp lines and sharp angles

Caliber: BALL RR1103-C

this updated classic offers smart

Seiko Prospex SNR043 Spring Drive Power Reserve Black Dial Automatic Limited to 200 Pieces Casio G-Shock G-Steel Bluetooth Connected GSTB100-1A 20mm (Ø 40mm) or 21mmCaliber Number 5R65 Movement Type Spring Drive Accuracy 1 second per day 15 seconds per month (average) Duration Approx. 72 hours(3 days) Crystal Curved sapphire Crystal Coating Anti reflective coating on inner surface LumiBrite Lumibrite on hands and indexes Clasp Three fold clasp with secure lock , push button release with extender Water Resistance 300m 1000ft for saturation diving Case Size Thickness: 15. 7 Diameter: 44. 8 Length: 50. 9 Other