The Basics
The Fortis Official Cosmonauts Day-Date Monolith offers a cleaner look compared to many of its siblings, featuring over sized stick indexes on a clean black dial. Its stainless steel case is PVD coated.
| Brand: | Fortis |
| Family: | Cosmonautis |
| Reference: | 647.18.31 |
| Name: | Official Cosmonauts Day-Date Monolith |
| Produced: | N/A |
| Limited: | No |
Below is a detailed look at Fortis’s model 647.18.31 from Cosmonautis watch family, including the price, case details and movement features.
The Details
Fortis’s Official Cosmonauts Day-Date Monolith (647.18.31) was originally released in N/A. This watch features a automatic movement beating at a frequency of 28800 bph ( 4 Hz) to provide a 38-hour power reserve when fully wound.
The Case
The stainless steel case measures 42mm in diameter and roughly 12mm thick, with 20mm lug width. The round case is paired with a black color dial with stick-shaped hands, and a stick / dot hour markers and minute track, covered by a sapphire glass. Fortis’s Cosmonautis model 647.18.31 water resistance is not available. This does not mean this watch is not water resistant. A solid caseback is over the back of the watch case.
| Material: | Stainless steel |
| Glass: | Sapphire |
| Back: | Solid |
| Shape: | Round |
| Diameter: | 42mm |
| Height: | 12mm |
| Lug Width: | 20mm |
| W/R: | N/A |
Case Diameter
Case Thickness
Lug Width
Water Resistance
The Movement
The Cosmonautis 647.18.31 movement is a powered by caliber 2836-2 made by ETA. The 25-jewel automatic movement is 25.6mm in diameter. Its balance wheel oscillates at 28,800 semi-oscillations per hour or 4 Hz. This movement offers a 38-hour power reserve.
| Type: | Automatic |
| Brand: | ETA |
| Caliber: | 2836-2 |
| Base: | ETA 2824-2 |
| Display: | Analog |
| Diameter: | 25.6mm |
| Jewels: | 25 |
| Reserve: | 38 hours |
| Frequency: | 28800 bph |
| Time: | |
| Chronograph: | |
| Additionals: |
The Price
How much does the Fortis’s Cosmonautis 647.18.31 cost? This watch was introduced in N/A and has been in Fortis’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.
CURRENT PRICE: Not Available
For more information, visit Fortis online.
Specifications:
- Brand: Fortis
- Model: Official Cosmonauts Day-Date Monolith
- Reference Number: 647.18.31
- Limited: No
Case & Dial:
- Material: Stainless steel
- Glass: Sapphire
- Back: Solid
- Diameter: 42
- Thickness: 12
- Lug Width: 20
- Dial Color: Black
- Indexes: Stick / Dot and Stick-shaped hands
- Water Resistance: N/A meters
Movement:
- Winding: Automatic
- Brand: ETA
- Caliber: 2836-2
- Display: Analog
- Diameter: 25.6mm
- Jewels: 25
- Power Reserve: 38 hours
- Frequency: 28800 bph
- Functions:
About Fortis
No description is available.
View all Fortis watches.
Fortis Watches
View more Fortis watches.
Discover new luxury watches and watch brands for men and women from our database of over 20,000 watches across more than 100 different brands.