Fortis B-42 Marinemaster Day Date

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B-42 Marinemaster Day Date is a wristwatch by Fortis.

Automatic dive watch in the series "B-42 Marinemaster" with the 42 mm large stainless steel case. Indication of day of the week and date. The hour numerals and indexes are enlarged to improve the readability and a luminous coating with blue afterglow is used. The watch is optionally available in a version with white or with black dial and with different bracelets.


Version black:

647.10.41 K with rubber strap black
647.10.41 S.20 with orange silicone strap
647.10.41 L with black leather strap
647.10.41 M with steel bracelet Professional

Version white:

647.11.42 S.02 with white silicone strap
647.10.42 K with rubber strap black
647.10.42 L with black leather strap
647.10.42 M with steel bracelet Professional


Self-winding movement ETA 2836-2, 28,800 A/h
25 jewels
Precision regulation, Incabloc shock protection
Power reserve 40 h


Stainless steel, brushed
Ø 42.0 mm, H ? mm
Sapphire crystal
Unidirectional turning bezel (120 lines screening) with 60 minutes scale
Raised dial with hours scale 13 bis 24 Uhr
Screwed steel caseback
White variant: caseback embossing with the insignia of the Russian Federal Space Agency FSA (Roscosmos) and the Cosmonaut Training Centre Star City
Individual numbering
Waterproof to 200 m


Black mat
Big Arabic numerals, indexes and hands with Superluminova
Stop seconds hand orange with Superluminova luminous dot
Luminous coating with blue afterglow
White variant: White dial completely in Superluminova, striking Arabic numerals and distinctive broad indexes in black, blue seconds hand with Superluminova capsule
Bilingual day and date indication (German or English adjustable)


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


Black rubber strap with tang-type buckle / optional stainless steel bracelet with folding clasp, orange silicone strap or leather strap
White variant: White silicone strap with folding clasp / optional stainless steel or rubber strap with folding clasp or leather strap


2 years