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The Encyclopedia of Horology

Wristwatch · Chronograph

Kathy Chronograph Wristwatch

Partially verified

This Swiss-made chronograph wristwatch by Kathy features a stainless steel case measuring 38 mm in diameter, excluding the pushers. The watch is powered by a manual-wind Valjoux 7734 caliber movement, which incorporates 17 jewels and an Incabloc shock-protection system. The dial is finished in matte black with two contrasting silver-colored sub-dials, silver-tone luminous hands and indices, and a central red-tipped chronograph hand. A date display window is situated at the 6 o'clock position. The case is equipped with a bidirectional rotating black bezel and round push-buttons. The screw-down case back bears the inscriptions "ALL STEEL," "100% WATERPROOF," and a serial number. The watch is presented on a black 20 mm Nato-style fabric strap. According to the auction description, the movement has been recently serviced and is in operational condition.

Frontal view of the Kathy chronograph featuring a black bezel and matte dial.
Frontal view of the Kathy chronograph featuring a black bezel and matte dial. — Zamanito / Ashton-Blakey Antiques. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Chronograph
Maker / attribution
Kathy
Reference
493638
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
late 1960s or 1970s (based on Valjoux 7734 caliber)
Source-reported place
Switzerland

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 watch is housed in a 38 mm stainless steel case featuring a bidirectional rotating black bezel. The case back is of a screw-down design and displays the inscriptions "ALL STEEL" and "100% WATERPROOF" alongside a reference number. The watch is operated via two round push-buttons located on the side of the case.

The dial is rendered in a matte black finish and features two silver-colored sub-dials for monitoring seconds and chronograph minutes. The display includes silver-tone hands and hour indices with luminous material. A red arrow-tipped central hand serves the chronograph function, and a date display is located at the 6 o'clock position. Text on the dial includes "17 JEWELS," "INCABLOC," and "SWISS EBAUCHE."

Evidence for this section
  • “قاب ساعت از جنس استیل ضدزنگ (Stainless Steel) ساخته شده و دارای در پشت پیچی و دکمه‌های فشاری (پشر) گرد”
  • “یک بزل مشکی با قابلیت چرخش چندجهته دور قاب قرار گرفته است.”
  • “صفحه ساعت به رنگ مشکی مات با دو شاخص فرعی (ثانیه‌شمار و ثبت دقایق کرونوگراف) به رنگ روشن”

Movement and Functionality

The timepiece utilizes the manually wound Valjoux 7734 caliber movement. This mechanism is configured with 17 jewels to reduce friction and includes the Incabloc shock-protection system, intended to enhance durability.

The watch includes a chronograph complication and a date window at the 6 o'clock position. The auction description reports that the movement has undergone a recent service and is currently in working order, providing smooth operation for its functions.

Evidence for this section
  • “موتور ساعت کالیبر دستی Valjoux 7734 مجهز به ۱۷ سنگ و سیستم ضدضربه اینکابلوک است.”
  • “طبق توضیحات منبع، ساعت اخیراً سرویس شده و با عملکردی روان و در وضعیت کاری مناسب ارائه می‌شود.”

Historical Attribution and Discrepancies

The catalogue entry attributes the manufacture of this watch to the 1940s. However, the use of the Valjoux 7734 movement complicates this dating, as the caliber was introduced to the market in the late 1960s. This discrepancy necessitates that potential owners independently assess the production period of the piece.

The watch is described as reflecting a military and sport design aesthetic prevalent during the 1960s and 1970s. It is offered with a modern 20 mm Nato-style strap, consistent with its intended aesthetic profile.

Evidence for this section
  • “کالیبر Valjoux 7734 از نظر تاریخی اواخر دهه ۱۹۶۰ به بازار معرفی شد، بنابراین تاریخ‌گذاری دهه ۱۹۴۰ توسط فروشنده با مشخصات فنی موتور همخوانی ندارد”
  • “این ساعت طراحی اسپرت و نظامی دهه ۱۹۶۰ و ۱۹۷۰ را بازتاب می‌دهد؛ با این حال در کاتالوگ فروشنده، دوره ساخت آن به صورت تخمینی حدود دهه ۱۹۴۰ قید شده است.”

Open research questions

  • What is the specific historical production window for the 'Kathy' brand in relation to this Valjoux caliber?
  • Has the dial or case been modified given the chronological mismatch between the stated decade and the caliber?

Source evidence

Recorded claims and source quotations for Kathy Chronograph Wristwatch
FieldSource-reported valueSource quotation
MakerKathy“نام تجاری Kathy”
MovementValjoux 7734“کالیبر شناخته‌شده مکانیکی Valjoux 7734”
Case MaterialStainless Steel“استیل ضدزنگ (Stainless Steel)”
Case Diameter38 mm“قطر قاب ۳۸ میلی‌متر”
Jewel Count17“۱۷ سنگ”
Case Back InscriptionsALL STEEL, 100% WATERPROOF“عبارت‌های «ALL STEEL» و «100% WATERPROOF»”
OriginSwiss“کرونوگراف وینتیج سوئیسی”
Strap20mm Nato-style fabric“بند پارچه‌ای مشکی جدید به سبک نظامی ناتو (Nato) با پهنای ۲۰ میلی‌متر”

Visible details

  • Bidirectional rotating bezel with numerical markers
  • Central chronograph hand featuring a red arrow tip
  • Date window positioned at 6 o'clock
  • Matte black dial with twin sub-dials

Research qualifications

  • The seller-provided dating to the 1940s is inconsistent with the Valjoux 7734 caliber, which was introduced in the late 1960s.
  • Waterproof claims on vintage cases require professional verification before exposure to moisture.

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

Consulted source

Swiss Chronograph Watch

Reviewed 2026-11-02 · Record d422d3501b

Terms in this record

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

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