The Wristwatch Field Guide

Louis Erard 2340 Louis Erard x Astro Boy

35123TA23.BMT12

The Louis Erard 2340 Louis Erard x Astro Boy is a current-production integrated bracelet watch with a titanium case, finished with brushed titanium case middle, with polished steel bezel, lugs and crown.

All Louis Erard watchesExotic-material integrated bracelet watchesTitanium
Material
Titanium
Grade / type
Titanium
Water resistance
50 m
Reference
35123TA23.BMT12
Type
Integrated bracelet
Price
– · CHF 3,990 excluding tax (maker price); limited edition of 178 pieces
Case diameter
40.0 mm
Thickness
8.95 mm
Lug-to-lug
41.5 mm
Origin
Switzerland
Movement
Automatic
Caliber
Sellita SW300-1
Power reserve
approx. 56 h
Complications
Time only
Colour
Grey
Construction
Titanium case middle with steel bezel, lugs, crown and screw-down caseback
Surface treatment
Brushed titanium case middle, with polished steel bezel, lugs and crown
Caseback
Steel
Nickel-free
No (steel contact)
Bracelet / strap
Integrated bi-material bracelet: brushed titanium outer links with a polished steel oblong centre link, Torx screws at the case attachment, concealed spring-loaded butterfly clasp
Matching bracelet
Standard
Crystal
Domed sapphire with anti-reflective treatment on both sides
Display back
No
Dial
Multi-layered: base stamped with a Metro City motif over a vertical satin brush, circular-brushed chapter ring with white LOUIS ERARD transfer, satin-brushed robot applique with a black LE emblem, and a satin-brushed Astro Boy applique with coloured printing
Dial colours
Black White
Lume
Blue-emission Super-LumiNova (SLN-C1) on the hour and minute hands and the LOUIS ERARD hour letters on the flange
Availability
Offered
Status
Current (limited edition of 178 pieces)
Not published
Weight, Hardness
Medium confidence Verified Aug 2026 Source: Louis Erard (maker) / Monochrome
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Frequently asked questions

Is the Louis Erard 2340 Louis Erard x Astro Boy nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What is the case material of the Louis Erard 2340 Louis Erard x Astro Boy?

The Louis Erard 2340 Louis Erard x Astro Boy has a titanium case, though its caseback is steel. It is recorded at medium confidence pending a maker-stated material.

What size is the Louis Erard 2340 Louis Erard x Astro Boy?

It is 40.0 mm in diameter, 8.95 mm thick, 41.5 mm lug to lug, and water resistant to 50 m.

How much does the Louis Erard 2340 Louis Erard x Astro Boy cost, and is it available?

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

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