CHRONOSWISS Timemaster Retrograde Day Automatic – Models in Stainless Steel Case with DLC Bezel and Galvanic Black or Silver Dial and Stainless Steel Case with Super-LumiNova Dial

The Timemaster Retrograde Day is an exceptional calendar watch crafted in solid stainless steel, and offers a spectacular display of sweep hours & minutes, date and retrograde day indication through its stunning dial which is available in metallic, galvanic black or luminous versions.

The solid 30 part case measures 44 mm and houses and automatic movement. The first two versions, CH 8145 bk (galvanic black dial) & CH 8145 wh (Sliver dial) feature a polished bezel with DLC coating. The CH 8143 lu model has polished bezel and luminous dial.

Other exterior features of the watch include Screw-down case back with full thread and embossing, Onion-style crown and Screw-in lugs with patented Autobloc System.

Technical details

Reference numbers
CH 8145 bk Stainless steel, bezel with DLC coating, galvanic black dial
CH 8145 wh Stainless steel, bezel with DLC coating, galvanic silver dial
CH 8143 lu Stainless steel, dial Super-LumiNova

Sweep hours and minutes
Date window at 12 o’clock
Retrograde display of the day

Solid 30-part case
Polished bezel with anti-reflective sapphire crystal
Screw-down case back with full thread and embossing
Onion-style crown
Screw-in lugs with patented Autobloc System
Water -resistant to 10 atm
Measurements: Ø 44 mm, height 15,10 mm

Chronoswiss Caliber C.286
Diameter: Ø 30 mm (13 ¼ ´´´)
Height: 5,20 mm
Jewels: 22
Balance: Glucydur, three-legged
Balance spring: Nivarox I
Fine adjustment: Via excenter cam
Shock protection: Incabloc
Frequency: 4 Hz./ 28,800 vph (semi-oscillations)
Power reserve: Approx. 42 hours
Special features: Skeletonized rotor with côtes de Genève, ball bearings, polished pallet lever and escape wheel; bridges and plates with perlage

Metal dial, galvanic black or Super-LumiNova
Hand: Metal hands coated with Super-LumiNova, Modern-style


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