Type 5B "Black"

As for all RESSENCE watches the essence of TYPE 5 is its main function - the expression of Time. To achieve the best-ever readability underwater, the complete ROCS 5 - all 142 components, including the dial - is immersed in 37.5 ml of oil. Indeed the use of oil has one ultimate advantage. It cancels out what is known as Total Internal Reflection. Typically, under water, a traditional diver’s watch needs to be viewed straight on in order to be read properly - otherwise refraction turns the glass into a mirror. But not with the oil-filled TYPE 5 . The use of oil ensures complete legibility whatever the angle of view. A first for a mechanical watch.

Functions
Hours
Minutes
Runner (90 Seconds)
Oil Temperature

Movement
Patented ROCS 5 - Ressence Orbital Convex System - module driven by the minute axle of a customised 2824/2 base calibre
Caseback winding and time setting with RCLS – Ressence Compression Lock System
Magnetic Transmission
Compensating Bellow System
Self-winding
36 hours power reserve
28,800 vibrations per hour
41 jewels
25 gears

Dial
Convex Grade 5 Titanium dial (125mm radius) with three eccentric biaxial satellites inclined at 3° (hours) and 4.75° (thermal gauge and runner)
Engraved indications filled with blue and green Superluminova

Case
Grade 5 Titanium
Two separate sealed chambers with the upper one filled with 37.5 ml of oil
Domed sapphire crystals top and bottom with both sides anti-reflective coating
Uni-directional bezel
46mm (diameter) x 15.5mm (thickness)
10 ATM water-resistance

Buckle & Strap
Ardillon Buckle
Black Barenia leather (24/22mm) + Black Nylon fabric (24mm)

Reference
TYPE 5B