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The Encyclopedia of Horology

Wristwatch · Manual-wind wristwatch

Patek Philippe Hour Glass reference 1593

Partially verified

This Patek Philippe reference 1593 wristwatch, known as the 'Hour Glass', features an 18k yellow gold case measuring 41.5 by 25 mm. The model is characterized by its ergonomic, sculptural design with concave and convex case sides. The silver-finished dial exhibits vertical brushing and includes applied Arabic numerals and arrow-shaped markers, complemented by a subsidiary seconds sub-dial at the six o'clock position. The Patek Philippe Geneve signature is rendered in black enamel. Power is supplied by the manual-wind Calibre 9.90, which is described in the provided information as a refined, in-house movement. Based on the provided serial numbers for the movement and case, the watch is dated to approximately 1954. The auction description reports that the movement has been serviced by their watchmaker.

Front view of the Patek Philippe Hour Glass reference 1593 in 18k gold with brown leather strap.
Front view of the Patek Philippe Hour Glass reference 1593 in 18k gold with brown leather strap. — Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Manual-wind wristwatch
Maker / attribution
Patek Philippe
Reference
1593
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
circa 1954
Source-reported place
سوئیس
Source-reported serial
977xxx

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial Design

The Patek Philippe reference 1593, commonly referred to as the 'Hour Glass', presents a geometric case profile measuring 41.5 mm in height by 25 mm in width. The case is constructed from 18k yellow gold and is defined by its ergonomic shape, which utilizes both concave and convex surfaces along the sides.

The dial surface features a vertical brushed silver finish. Applied gold-colored Arabic numerals and arrow-shaped hour markers provide index points. The signature of the manufacturer is printed in black enamel below the twelve o'clock position. A small subsidiary seconds dial is located at the base of the dial, near the six o'clock position.

Evidence for this section
  • “بدنه ساعت از طلای زرد ۱۸ عیار ساخته شده و دارای ابعاد ۴۱.۵ در ۲۵ میلی‌متر است”
  • “به واسطه فرم ارگونومیک و هندسه تندیس‌گون لبه‌های مقعر و محدب بدنه خود شناخته می‌شود”
  • “صفحه ساعت دارای پرداخت نقره‌ای برس‌خورده (برس‌کاری عمودی) است و امضای Patek Philippe Geneve با لعاب مشکی روی آن نقش بسته است”

Movement and Functionality

This watch is powered by the manual-wind Calibre 9.90. The movement utilizes a manual winding mechanism.

According to the provided information, the watch movement has undergone a comprehensive service conducted by a watchmaker associated with the collection.

Evidence for this section
  • “نیروی محرکه این ساعت توسط کالیبر دست‌کوک نمادین 9.90 تأمین می‌شود”
  • “طبق ادعای فروشنده، موتور ساعت توسط ساعت‌ساز مجموعه به‌طور کامل سرویس شده است”

Provenance and Identification

The watch is identified by reference 1593, a model series first introduced in 1944. Based on the recorded movement serial number 977xxx and case number 209xxxxx, the specific example is dated to approximately 1954.

The source includes specific recommendations for collectors to independently verify the authenticity of the dial components and to ensure the serial numbers align with the manufacturer's archives. Additionally, users are advised to evaluate the condition of the case edges to confirm that previous polishing has not compromised the original form.

Evidence for this section
  • “این مدل نخستین بار در سال ۱۹۴۴ معرفی گردید”
  • “شماره سریال موتور (977xxx) و شماره بدنه (209xxxxx) طبق توضیحات ارائه‌شده، تاریخ ساخت این نمونه را به حدود سال ۱۹۵۴ میلادی بازمی‌گرداند”
  • “به خریداران و علاقه‌مندان توصیه می‌شود اصالت چاپ و پرداخت صفحه، تطابق شماره سریال‌های موتور و قاب با بایگانی کارخانه”

Open research questions

  • Do the movement and case serial numbers correspond to Patek Philippe production records for the mid-1950s?
  • Has the dial undergone any refinishing or cleaning since its original manufacture?

Source evidence

Recorded claims and source quotations for Patek Philippe Hour Glass reference 1593
FieldSource-reported valueSource quotation
MakerPatek Philippe“سازنده: Patek Philippe”
Reference1593“شماره رفرنس: 1593”
ModelHour Glass“نام مدل / لقب: Hour Glass”
Datecirca 1954“دوره تقریبی ساخت: حدود ۱۹۵۴”
Case Material18k yellow gold“جنس بدنه: طلای زرد ۱۸ عیار”
Dimensions41.5 x 25 mm“ابعاد قاب: ۴۱.۵ × ۲۵ میلی‌متر”
MovementCalibre 9.90“کالیبر موتور: Calibre 9.90”
Movement Serial977xxx“شماره سریال موتور (977xxx)”

Visible details

  • Case features distinct concave and convex edges forming the 'Hour Glass' silhouette
  • Silver-toned dial with vertical brushing finish
  • Signed 'Patek Philippe Geneve' in black enamel at the upper dial section
  • Subsidiary seconds hand positioned above the six o'clock marker

Research qualifications

  • Potential loss of crispness of case edges due to historical polishing
  • Accuracy of dial restoration or refinishing requires independent verification

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Patek Philippe ref. 1593 Hour Glass in 18k Yellow Gold

Reviewed 2026-11-02 · Record c32ec44e91

Terms in this record

Glossary explanations for terms named in this object’s record.

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