Fortis B-42 Marinemaster Chronograph

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B-42 Marinemaster Chronograph is a wristwatch by Fortis.

Automatic diver chronograph in the series "B-42 Marinemaster" with the large 42 mm stainless steel case. Indication of day of the week and date.


647.10.41 K with rubber strap
647.10.41 L with leather strap
638.10.41 M with steel bracelet Professional


Self-winding chronograph movement Valjoux 7750, 28,800 A/h
25 jewels
Precision regulation, Incabloc shock protection
Power reserve 50 h


Stainless steel, brushed
Ø 42.0 mm, H ? mm
Sapphire crystal
Unidirectional rotating black bezel (120 lines screening) with 60 minutes scale
Raised dial with tachymeter scale
Screwed steel caseback
Caseback embossing with ISS-Station, with the official emblems of the Space Agency FSA and the Cosmonauts Training Center Star City
Individual numbering
Waterproof to 200 m


Black mat
Big Arabic numerals and broad indexes
Numerals, indexes and hands with luminous coating Superluminova
Blue afterglow in the darkness
Chrono minutes counter recessed and multicolored, stop seconds hand orange with Superluminova luminous dot


Hours, minutes, central seconds
Day of week, date
Hacking seconds
Triangles at 3 o'clock to illustrate the direction of crown rotation for quick setting of all functions


Stainless steel bracelet with folding clasp
Optional: leather strap black with tang-type buckle or folding clasp / rubber strap with folding clasp


2 years