Skip to the content
Artist

William Holme Twentyman

William Holme Twentyman (31 October 1802 – 7 May 1884) was a silversmith in Cape Town, who amassed a considerable fortune on Mauritius and retired at the age of 39. Whilst on Mauritius he created a sealed case for a pocket watch to be worn under water. After trials soldered lugs were incorporated and a "strong canvas" band was tied to the wrist for ease of use.

William Holme Twentyman

Born
1802
Died
1884
Occupation
watchmaker · silversmith

Reference Check

Propose documentary evidence for William Holme Twentyman. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.

Sign in to contribute

Documentary evidence

Documentary basis

Authority files

wikidata · Q8012434 · wikipedia · William Holme Twentyman

In this article

  1. 01Biography
  2. 02Notes, references and evidence

The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.

Elsewhere in Watches

318 published records in this field, each with its sources named.

Read the complete watches index

For owners

Own a work by William Holme Twentyman?

A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.