1947 Fortis Pilot Chronograph Valjoux 77
Brand
Fortis
Series
Pilot Chronograph
Catalogue Reference
3510
Production Year
1947
Movement Type
Mechanical Winding
Style
Casual Watch
Mechanique Chronograph
A chronograph watch powered by mechanical (hand-winding) movement, combining both timekeeping and the ability to measure elapsed time with a stopwatch function.
Case
Diameter
35 mm
Thickness
12 mm
Material
Stainless Steel
Water Resistance
Water Resistant
Finishing Details
Polished
Bezel
Without bezel
Crown Type
Push/Pull
Crystal
Acrylic
Caseback
Brand decoration and details engraved
Dial
Color
White
Dial Markers
Arabic Numerals
Finishing Details
Vertical Brushed Patterm
Luminiscent Indexes
None
Calendar
Without Calendar
Bracelet
Material
Leather (Fixed Lugs)
Buckle Type
Standard Buckle
Width
18 mm
Color
Brown
Valjoux Cal. 77
The Valjoux 77 is a manual-wind chronograph with a 60-second counter and 30/45-minute counters, driven by a pillar wheel. Additionally, it includes a sub-second function.
Manufacturer
Valjoux
Model
77
Type
Mechanical Winding
Frequency
18000 A/h
Jewels
17 (Seventeen) Jewels
Reserve
40 Hours
Functions
Hours, Minutes, Sub Seconds at 6 o'clock, Up/Down Chronograph with Central Seconds Hand and 12 o'clock 30min counter