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Hermès H1837

High confidence

Named for the year Hermès was founded, which makes the number a date rather than a caliber-series designation — the same convention as Tissot's 1853 on the dial, and worth knowing so that the number is not read as sequence information. The double barrel is the structural feature: it is what produces the 50-hour reserve and it is visible through the display back.

Specifications

Movement manufacturer
Hermès
Frequency
28,800 vph (4 Hz)
Power reserve
50 hours
Winding
automatic
Complications
Centre seconds · Date

Architecture

An 11.5-ligne self-winding movement of 193 parts built by Vaucher Manufacture Fleurier, with a double barrel, centre seconds and date.

Service practice

A Vaucher caliber, so servicing runs through Hermès or a watchmaker with access to Vaucher parts rather than through the generic ETA supply chain. Parts are not interchangeable with anything else, which is a real practical constraint on a watch of this price and an argument for keeping it in the brand's own service network.

Related calibers

  • Related caliber

    Hermès H1950

    Both Vaucher-built for Hermès; different architectures for different purposes.

References using this caliber

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

Vaucher Manufacture Fleurier caliber documentation

Vaucher Manufacture Fleurier

Accessed
2026-08-19

Cited for

This referenceHigh confidence
Primary sourceManufacturer documentation

Hermès — watch collection and caliber specifications

Hermès International / La Montre Hermès

Accessed
2026-08-19

Cited for

This referenceHigh confidence
View source ↗

Last verified: Not yet reviewed