Ball Engineer M Challenger 43mm
Reference: ND2186C-L5C-BK
The Ball Engineer M Challenger 43mm in bronze, black and brown is a casual/dress watch released under the Engineer M collection. In terms of construction this version features a 43mm and bronze case paired with a leather band and sapphire crystal. The movement is an automatic Ball reference RRM7309-C. It has a power reserve of 80 hours and beats at a frequency of 28 800 beats per hour.
Essentials
Collection
Crystal
Sapphire
Materials case
Bronze
Materials band
Leather
Water resistance
100 m
Limited edition
1000 pieces
Visuals
Case shape
Tonneau
Case diameter
43 mm
Case height
13.4 mm
Lug width
21 mm
Lug to lug
50 mm
Weight
100 g
Indices
Arabic numerals, Batons
Illumination
micro gas tubes
Colors case
Bronze
Colors dial
Black
Colors band
Brown
Movement
Caliber
Ball RRM7309-C
Type
Automatic
Power reserve
80 hours
Frequency
28 800 bph /
4 Hz
No. of jewels
25
Complications
Features
Variations
Storage
Books
Tools
Clocks
Straps
Misc.Brand - Ball
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