Seiko Prospex Speedtimer Mechanical Datsun 240Z LE 39.5 MM Watch SPB517J1 Grand Seiko Weight: 173

Weight: 173

The same spirit has been behind the models in the Conquest collection since 1954

Using high-density mounting technology

Created with high-tech precision by Victorinox horologists

Seiko Prospex Speedtimer Mechanical Datsun 240Z LE 39.5 MM Watch SPB517J1 Grand Seiko Weight: 173Caliber Number: 6R55 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 Functions Stop second hand function Case Band Case Material: Stainless steel (super hard coating) Case Size Thickness: 12. 0mm Diameter: 39. 5mm Lug to lug: 44. 5mm Crystal: Curved sapphire crystal Crystal Coating Anti reflective coating on inner surface Band Material: leather Clasp Three fold clasp