The Titanium Field Guide

Louis Moinet Speed of Sound Green

LM-130.20.31

The Louis Moinet Speed of Sound Green is a current-production chronograph watch with a grade 5 titanium case.

All Louis Moinet watchesWatch chronograph watchesGrade 5 titanium
Material
Titanium
Grade / type
Grade 5
Water resistance
30 m
Reference
LM-130.20.31
Type
Chronograph
Price
– · Price on request
Case diameter
40.7 mm
Origin
Switzerland
Movement
Manual monopusher chronograph with moon-phase complication, restoration of the historic Valjoux 88 calibre
Caliber
Valjoux 88 (restored and re-engineered by Louis Moinet)
Power reserve
40 h
Complications
Chronograph
Colour
Grey
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Preformed rubber strap
Dial
Guilloché dial with Aletai meteorite in the chronograph counters
Dial colours
Meteorite
Availability
Offered
Status
Limited edition of 3 watches
Not published
Thickness, Lug-to-lug, Weight, Hardness, Construction, Surface treatment, Caseback, Matching bracelet, Crystal, Display back, Lume
High confidence Verified Sep 2026 Source: Louis Moinet (maker)
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Frequently asked questions

What is the case material of the Louis Moinet Speed of Sound Green?

The Louis Moinet Speed of Sound Green has a grade 5 titanium case. This is confirmed against the maker spec.

What size is the Louis Moinet Speed of Sound Green?

It is 40.7 mm in diameter, and water resistant to 30 m.

How much does the Louis Moinet Speed of Sound Green cost, and is it available?

It is current-production; the guide does not list a price for it.

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