Important Modern & Vintage Timepieces

Monaco, Jul 21, 2021

LOT 57

Thomas Mercer for Kelvin Hughes
8-day going marine chronometer, power reserve; mahogany and chromium-plated metal

EUR 6,800 - 13,700

USD 8,100 - 16,300 / HKD 63,000 - 128,000

Mahogany and chromium-plated metal, 8-day going, marine chronometer, with subsidiary seconds at 6 and one horological complication:
• 8-day power-reserve indication (sector at 12 o’clock)


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Grading System
Grade: AAA

Excellent
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-01

Good

HANDS Original

Brand Thomas Mercer, St. Albans (England)

Model Made for Kelvin Hughes, London and Glasgow

Year Circa 1950-1960

Movement No. 997 N

Case No. 997 N

Diameter 146 mm. (bezel)

Caliber 50’’’, half-plate, pillars, brass, fusee an chain, Earnshaw-type spring detent escapement, compensated bimetallic balance, free-sprung cylindrical hairspring

Dimensions 20.5 x 21 x 21.5 cm.

Signature dial and case

Accessories ratchet winding-key

Notes

In 1956, William Skeen created a new design for the Mercer’s 8-day going marine chronometers in St. Albans, England. This can be recognised by the letter “N” added after the movement number on the dial.
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Kelvin Hughes
Now Hensoldt UK, Kelvin Hughes is a British company specialising in the design and manufacture of navigation and monitoring systems and a provider of navigation data to the commercial and government marine market.
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*a 20% import VAT is due on the hammer price with buyer's premium, plus 150€ for termination of temporary export, at buyer's expense, only if it is delivered within the EU