Hier die Info

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Reference: 5817ST/12/SV0
Stainless steel / Steel bracelet

Man’s MARINE wristwatch in steel. Automatic movement.

Engine-turned dial in silvered 18K gold.

Chapter ring with Breguet roman numerals and luminous minute-markers.
Large date at 6 o’clock with instantaneous date change at midnight.
65 hours power reserve.

Engine-turned caseback with sapphire crystal. Screw-locked crown.
Water-resistant to 100 metres.

Steel Bracelet with folding clasp.

Metal: Yellow gold/steel
Calibre: 517GG
Lines: 11 ½
Caseback: Sapphire
Case dimension (mm): 39
Jewels: 35
Water (m): 100
Power (hours): 65