Eberhard Navy Master, 1887-1987 Centenary series. Automatic movement with full calendar - Water resistant to 3 ATM. Brand: EBERHARD & CO Model: Navy Master Reference: 31011/B6 Movement: Self-winding mechanical. Functions: Hours, minutes, seconds, chronograph, full calendar. Case: Entirely made of steel. Bezel: Smooth. Crown: Screw-down crown with small non slip pawls in 18 kt gold Buttons: Push buttons. Lugs: Curved. Dimensions: 36 mm excluding crown, 43 mm at the lugs. Crystal: Plexiglas. Caseback: Fastened with 4 screws, customised with the brand logo. Dial: White, with bar hour markers treated with a luminescent material, stylus hands, also luminescent, continuous seconds at 9 o'clock, chronograph minutes at 12 o'clock, chronograph hours at 6 o'clock, chronograph seconds at the centre, date at the centre, day and month windows at 12 o'clock, Eberhard logo at 3 o'clock. Strap: Leather (needs replacing). Buckle: Original Eberhard & Co. Tracked shipping.