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Louis Moinet Cosmopolis Titanium

LM-135.20.20 / LM-135.20.50

The Louis Moinet Cosmopolis Titanium is a 40.7 mm Grade 5 titanium watch with a Louis Moinet Cal. LM135 hand-wound movement. With a 96-hour power reserve, it runs longer than 92% of the 1,109 mechanical titanium watches with a stated reserve.

All Louis Moinet watchesOther watchesGrade 5 titaniumTourbillon
Material
Titanium
Grade / type
Grade 5
Water resistance
30 m
Reference
LM-135.20.20 / LM-135.20.50
Type
Other
Price
– · Price on request; the maker's page offers a purchase request form and publishes no price
Case diameter
40.7 mm
Origin
Switzerland
Movement
Hand-wound tourbillon, 4 Hz, 26 jewels
Caliber
Louis Moinet Cal. LM135
Power reserve
96 h
Complications
Tourbillon
Colour
Grey
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Alligator strap, folding clasp
Crystal
Sapphire dome
Dial
White mother-of-pearl set with 12 different meteorite fragments (LM-135.20.20); a second titanium dial version LM-135.20.50
Dial colours
White Meteorite
Availability
Offered
Status
Two titanium limited editions of 3 each; LM-135.20.20 sold out, LM-135.20.50 still listed
Not published
Thickness, Lug-to-lug, Weight, Hardness, Construction, Surface treatment, Caseback, Matching bracelet, Display back, Lume
High confidence Verified Oct 2026 Source: Louis Moinet (maker)
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Frequently asked questions

What grade of titanium is the Louis Moinet Cosmopolis Titanium?

Grade 5, as stated by the maker.

What size is the Louis Moinet Cosmopolis Titanium?

The case is 40.7 mm across. It is water resistant to 30 m.

How much does the Louis Moinet Cosmopolis Titanium cost, and is it available?

It is in production, but the maker does not publish a price.

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