Seiko Presage Classic Series Automatic 40.2 MM Stainless Steel Blue Dial Watch SPB525J1 Omega this timepiece is driven by

this timepiece is driven by the OMEGA Co-Axial Master Chronometer Calibre 8900

this 41mm Khaki Navy Frogman Automatic is fitted with an imposing stainless steel bracelet

One-piece structure

Thickness (mm)11

Chrono- 241985

Seiko Presage Classic Series Automatic 40.2 MM Stainless Steel Blue Dial Watch SPB525J1 Omega this timepiece is driven byCaliber 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 secondhand function Case Band Case Material Stainless steel (super hard coating) Case Size Thickness: 13. 0mm Diameter: 40. 2mm Lug to lug: 46. 0mm Crystal Dual curved sapphire crystal Crystal Coating Anti reflective coating on inner surface Clasp Deployment clasp with push button