Collection
Raider

Bathy 120 MemoDepth

The indispensable companion for momentous deep-sea explorations

“When deep-sea diving, I am your precision depth gauge. When there is no room for error, I am your reliable partner. Dive to 120m, and I will record your momentous exploration. Seek ingenuity, and I am the only one you will find“

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  • 00.10108.06.51.31
    Raider
    Bathy 120 MemoDepth
    Price: CHF 8’500.–
    Technical Data
    00.10108.06.51.31
    Case  |  Titanium
    Dial  |  Black with blue dive sectors
    Strap  |  Rubber with pin buckle

    MOVEMENT

    Hand-wound FL321 movement, based on the EMC 3903M caliber; specially designed mechanisms for depth gauge and power-reserve indicator, power reserve of 65 hours

    FUNCTIONS

    Hours, minutes, small seconds, central hand for displaying current dive depth up to 120 m, depth gauge subdial for displaying maximum depth recorded, power-reserve indicator, date display

    CASE

    Unidirectional rotating bezel with anodized aluminium insert, screw-in crown, sapphire crystal with antireflection coating on both sides, screwed and aligned case back, diameter 48 mm, water-resistant up to 20 bar/200 m

    DIAL

    Black dial with blue dive sector marking, red indication for decompression stops, applied indexes, luminous indexes and hour and minute hands, blue hand for displaying depth

00.10108.06.51.31
Raider
Bathy 120 MemoDepth
Price: CHF 8’500.–
Technical Data
00.10108.06.51.31
Case  |  Titanium
Dial  |  Black with blue dive sectors
Strap  |  Rubber with pin buckle

MOVEMENT

Hand-wound FL321 movement, based on the EMC 3903M caliber; specially designed mechanisms for depth gauge and power-reserve indicator, power reserve of 65 hours

FUNCTIONS

Hours, minutes, small seconds, central hand for displaying current dive depth up to 120 m, depth gauge subdial for displaying maximum depth recorded, power-reserve indicator, date display

CASE

Unidirectional rotating bezel with anodized aluminium insert, screw-in crown, sapphire crystal with antireflection coating on both sides, screwed and aligned case back, diameter 48 mm, water-resistant up to 20 bar/200 m

DIAL

Black dial with blue dive sector marking, red indication for decompression stops, applied indexes, luminous indexes and hour and minute hands, blue hand for displaying depth

Function And Use Of The Depth Gauge

The 200m water resistant Raider Bathy 120 MemoDepth can indicate a diving depth of up to 120 meters. It performs this measurement with a simple but unconventional technique, wherein the water is allowed to enter the watch through a special chamber that houses a copper membrane. The perforation provided on the case back allows the water to enter this chamber, which is hermetically sealed from the one containing the watch movement, thereby protecting the watch while measuring vital information necessary during a dive.

The copper membrane temporarily deforms as a result of the increasing water pressure entering the chamber, and this information is registered by a mechanical contact sensor and relayed to the blue depth hands visible on the dial. The current depth of up to 120 m is read off using the central blue hand on a linear scale marked on the outer edge of the dial. A fine scale allows a detailed reading for the first 30 metres of depth. Two red markings between 3 and 6, and between 9 and 12 visible on the outer edge of the dial also indicate to the diver the most important decompression stops that should be undertaken during ascent.

Reading The Maximum Depth (MemoDepth)

The Raider Bathy 120 MemoDepth also has a memory function. The sub-dial at 3H shows the maximum depth you have reached during your dive. As the diver descends and the depth increases, the central as well as a the small blue hands rotate clockwise to indicate the current depth. A gear mechanism designed ensures that the pointer on the subdial stops at the maximum diving depth so that this maximum diving depth can be reliably read off on a graduated scale. Meanwhile, during an ascent, the central blue hand rotates anti-clockwise to indicate the current depth during the ascent.