Retrograde Day

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Product Details
For the latest addition to the Timemaster family, “retro” does not refer to the design, it refers to the function: The Timemaster Retrograde Day is the first Timemaster with a retrograde weekday display.


Reference CH-8143B-BK
Case material Stainless steel with DLC-coated bezel
Case back Screw-down case back with satin finish and engraving
Diameter in mm 44 mm
Height in mm 15.30 mm
Finish Partly polished, partly with satin finish
Bezel Polished screw-down bezel with side knurling and full thread, with 5-minute scale


Caliber Caliber C. 286, automatic
Frequency 4 Hz (28.800 A/h)
Power reserve in hours Approx. 42 h
Number of jewels 21


Dial material Metal, galvanic black
Display/s Central hours, minutes and seconds, big date window at 12:00, retrograde display of weekday at 6:00
Design of hands Metal with Super-LumiNova inlay, white
Shape of hands "Modern style"

Strap & buckle

Strap material Rubber
Type of buckle Folding clasp


Water resistance in atm 10 bar (100 m)
Special Screw-in crown
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