The Titanium Field Guide

H. Moser & Cie Endeavour Perpetual Calendar Concept Tantalum

1800-2004

The H. Moser & Cie Endeavour Perpetual Calendar Concept Tantalum is a current-production dress watch with a tantalum (case and dial) case. It is priced well above the $542 median for the category. The caseback is open, so the movement is visible.

All H. Moser & Cie watchesExotic-material dress watchesPower reservePerpetual calendarDisplay back
Price
≈$93,493 (CHF 75,000)
Material
Tantalum
Grade / type
Tantalum (case and dial)
Reference
1800-2004
Type
Dress
Case diameter
42.0 mm
Thickness
13.1 mm
Origin
Switzerland
Movement
Manual, hand-wound
Caliber
HMC 800
Power reserve
7 days
Complications
Perpetual calendar, Power reserve
Colour
Grey
Construction
Assembled
Finish technology
Natural finish
Caseback
Tantalum
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Leather strap
Crystal
Sapphire
Display back
Yes
Dial
Solid tantalum, brushed sunburst, untreated
Availability
Offered
Status
Current (limited edition of 50, Watches and Wonders 2026)
Not published
Lug-to-lug, Water resistance, Weight, Hardness, Surface treatment, Matching bracelet, Lume
High confidence Verified Jul 2026 Source: H. Moser Endeavour Perpetual Calendar 1800-2004 (maker) / Monochrome
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More exotic-material watches from H. Moser & Cie

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Frequently asked questions

What is the case material of the H. Moser & Cie Endeavour Perpetual Calendar Concept Tantalum?

The H. Moser & Cie Endeavour Perpetual Calendar Concept Tantalum has a tantalum (case and dial) case with a tantalum caseback. This is confirmed against the maker spec.

What size is the H. Moser & Cie Endeavour Perpetual Calendar Concept Tantalum?

It is 42.0 mm in diameter, 13.1 mm thick.

How much does the H. Moser & Cie Endeavour Perpetual Calendar Concept Tantalum cost, and is it available?

It is current-production and lists from $93,493.

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