Arnold & Son Perpetual Moon 37 mm Slate 18k

Case, dial & bracelet

Case dimensions

37 mm

Case thickness

9.4 mm

Case material

18k yellow gold

Bezel

Octagonal with 8 hexagonal screws

Crystal

Sapphire with internal AR treatment

Dial

Slate grey

Hands

Faceted dauphine hands, polished by hand

Indexes

Printed minute track with applied batons

Bracelet / strap

Oyster bracelet

Clasp / buckle

Pin buckle in matching case metal

Water resistance

100 m

Movement

Movement / calibre

Calibre 13F — In-house manual-winding, hand-finished

Movement type

Automatic, self-winding

Frequency

21,600 vph (3 Hz)

Power reserve

45 hours

Number of jewels

27 jewels

Complications

Time only

Functions

Hours, minutes, small seconds

Watchmaker

Finishing, assembly and timing are carried out in the manufacture's own atelier.

Production & market

Production period

2016 – 2030

Limited-edition quantity

Not applicable

Current market information

Consistently trades above retail; waiting lists at authorised dealers remain long.

Designer

Marc Newson

Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.

Historical significance

Arnold & Son Perpetual Moon 37 mm Slate 18k sits within Arnold & Son's Perpetual Moon line, introduced in 2016. It carries the house codes established since 1764 — 18k yellow gold case, slate grey dial and in-house manual-winding, hand-finished — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

• The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
• Early production dials show a slightly different minute track, and collectors pay a premium for them.