Fortis Official Cosmonauts Chronograph Monolith 638.18.31

Fortis Official Cosmonauts Chronograph Monolith Ref. 638.18.31

The Fortis Official Cosmonauts Chronograph Monolith 638.18.31 has a 42 mm stainless steel case, measures 15.5 mm thick, and is water resistant to 200 metres.

The Fortis Monolith Chronograph ref. 638.18.31 features a black dial with over-sized stick indexes, housed in a PVD coated stainless steel case of 42mm. The bracelet is as black as its case.

Diameter: 42 mm
Thickness: 15.5 mm
Water resistance: 200 m
Case: Stainless Steel
Movement: ETA caliber 7750

Specifications

Case and dimensions

Case diameter: 42 mm
Thickness: 15.5 mm
Lug width: 20 mm
Case shape: Round
Case material: Stainless Steel
Coating: PVD
Bezel: Rotating, 0-60 (Dive)
Crystal: Sapphire
Case back: Closed
Water resistance: 200 m

Dial

Dial colour: Black
Indexes: Arabic Numerals
Hands: Stick

Movement

Calibre: ETA caliber 7750
Movement maker: ETA
Movement type: Automatic
Display: Analog
Power reserve: 42 h
Frequency: 28800 vph
Jewels: 25
Movement diameter: 30 mm
Complications: Chronograph, Date, Day, Hours, Minutes and Small Seconds

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