Fortis Official Cosmonauts Monolith Chronograph Men's Swiss Watch 638.18.31 L01

$4,000.00 You save 66%
  • Item #: 638-18-31-L-01


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Fortis watches for sale

Fortis watches 638.18.31 l01 Fortis official cosmonauts monolith chronograph men's Swiss watch has the eta-valjoux caliber 7750 movement calibre with automatic movement. This watch 638.18.31 l01 has the sapphire, anti-reflective coating on both sides crystal and has uni-directional bezels. Be a part of the Fortis family today!



Series~Monolith Official Cosmonauts~1

Model~638.18.31 L.01~1




Country Of Origin~Switzerland~1

Case Material~Stainless steel~1

Case Size~42 mm ( 44mm Across bezel)~1

Case Finish~Brushed, Black PVD~1

Case Thickness~15 mm~1

Case Shape~Round~1

Case Back~Solid~1

Crystal~Sapphire, Anti Reflective Coating On Both Sides~1



Dial Color~Black~1

Dial Type~Analog~1

Dial Finish~Smooth~1

Secondary Markers~Minute Markers, Tachymeter markings around the outer rim~1

Hands~White, Super-LumiNova Green Glow~1

Luminiscence~Hands, Hour Markers, 12 Marker on Bezel, Super-LumiNova Green Glow~1


Movement Calibre~ETA-Valjoux Caliber 7750~1

Power Reserve~44 Hour~1


Band Type~Strap~1

Band Material~Leather~1

Band Finish~Textured~1


Band Width~20 mm~1

Band Length~8.25 inches~1

Water Resistance~200 meters~1

Functions~Date, Day, Hour, Minute, Center seconds, Sub Seconds, 12 Hour Counter, 30 Minute Counter, Stop Watch Function~1

Features~Calendar, Chronograph, Stainless Steel, Swiss Made~1

Additional Information~New in Fortis box, serial # intact on all watches~1

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  • No restocking fee on Returns as long as unworn
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  • All our watches have the original manufacturer's serial numbers intact.
  • Minimum 2 Year Warranty on all watches

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At, your complete satisfaction is important to us. If for any reason you are not 100% satisfied with your purchase simply create an RMA & send your item back to Upscale Time in its new, unused condition, with original packaging and we will be happy to provide you with either a full refund of the purchase price or a store credit toward an exchange (excluding shipping & handling charges). Some conditions may apply. Please read our full return policy.

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  • Are authentic, never worn, in the original box with manuals unless otherwise noted.
  • Have the original manufacturer's serial numbers intact.
  • Have a 2 year warranty program (see our warranty section for details).

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