Movement
Movement number: CO 277
Winding system: Automatic
Functions: Hour & Minute • Second • Date • Moonphase & tides coefficient • Timing of the next two high and low tides • Current strength & tidal process indicator
Power reserve: 42 hours
Frequency: 4 Hz, 28’800 vph
Dimension: 11 1/2’’’
Rubies: 21
Movement finishes: Rotor with Corum dedicated decoration • Skeletonized and circular shaped rotor

Dial
Colours: Blue
Material: Brass
Distinctive features: Hourly nautical pennants transferred on the flange • Applied rhodiumcoated minute indexes with white superluminova • Corum logo applied on the dial • “Grenadier fendu” finishing

Case
Dimension: 45 mm
Thickness: 14.30 mm
Case material: Titanium grade 5
Bezel material: Titanium grade 5
Case sides: Titanium grade 5
Crown material: Titanium grade 5 • Engraved Corum key
Crown protector material: Titanium grade 5
Crystal: Sapphire crystal with anti-reflective treatment
Back type: Open back cover in titanium grade 5 with glare proof sapphire crystal
Water-resistance: 300 meters / 30 ATM

Hands
Hour and minute: Dauphine-variant • Rhodiumcoated • Faceted • Skeleton • White superluminova
Second: Baton with CORUM key • Rhodiumcoated
Counters: Dauphine-variant • Rhodium-coated • Faceted

Bracelet
Material: Vulcanized rubber
Colours: Blue
Interhorn/Buckle: 23/20 mm
Buckle type: Triple folding clasp
Buckle material: Titanium grade 5
Buckle distinctive features: Engraved CORUM logo • Opening and fastening system using 2 pushers