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The Encyclopedia of Horology

Wristwatch · Quartz dive watch

Omega Seamaster 300 Mini

Partially verified

The Omega Seamaster 300 Mini is a stainless steel quartz-powered wristwatch measuring 28 mm in diameter. It features a distinctive blue dial embossed with a wave pattern, a hallmark of the Seamaster Professional series, and is equipped with a matching stainless steel multi-link bracelet secured by a deployant clasp. The watch is designed for professional diving, with a rotating bezel and a rated depth capacity of 300 meters (1000 feet). The hour markers and hands are designed for visibility. This specific model is a scaled-down version of the larger Seamaster professional line, intended for slender wrists while maintaining the aesthetic identity and water-resistance features of the original series. Its quartz movement provides operational reliability and lower maintenance requirements compared to mechanical counterparts.

Front view of the Omega Seamaster 300 Mini on a dark background.
Front view of the Omega Seamaster 300 Mini on a dark background. — Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Quartz dive watch
Maker / attribution
Omega
Reference
Not recorded
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
1990s
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 Omega Seamaster 300 Mini is encased in stainless steel with a diameter of 28 mm, designed to accommodate smaller wrists. The dial is characterized by its prominent blue wave pattern, an aesthetic detail associated with the Seamaster professional line. The dial layout includes luminescent indices and hands to facilitate time reading in various lighting conditions, along with a date window positioned at the 3 o'clock mark.

A rotating bezel surrounds the crystal, serving as a functional component for timing diving intervals. The stainless steel case construction is intended to resist corrosion, supporting the watch's utility as a dive timepiece. The overall design language maintains the profile of the larger Seamaster professional models while reducing the scale of the case and components to suit a different wearable profile.

Evidence for this section
  • “بدنه این ساعت از فولاد ضدزنگ باکیفیت ساخته شده”
  • “این مدل خاص که با ابعاد کوچک ۲۸ میلی‌متری طراحی شده”
  • “طرح صفحه: آبی با الگوی موج‌دار”

Movement and Functionality

This choice also contributes to the reduced physical size of the watch, allowing the 28 mm case profile to remain slender.

The movement is protected by the stainless steel case, which provides the necessary robustness to uphold its classification as a professional-grade diver's watch, capable of functioning under significant water pressure.

Evidence for this section
  • “در قلب این ساعت، یک موتور کوارتز با دقت بالا تعبیه شده”
  • “استفاده از موتور کوارتز در این نسخه، علاوه بر کاهش ابعاد کلی ساعت، آن را به گزینه‌ای کاربردی برای کسانی تبدیل کرده”

Bracelet and Construction

The watch is equipped with a multi-link stainless steel bracelet that integrates with the lugs to create a unified appearance. The bracelet is fitted with a button-activated deployant clasp, which is stamped with the Omega logo. This mechanism is designed to provide both security and ease of use when placing the watch on the wrist.

The assembly of the bracelet is consistent with the standards of the manufacturer, ensuring that the bracelet functions as a secure interface for the wearer while complementing the watch head's design.

Evidence for this section
  • “بند استیل چند‌لینک این ساعت که به یک قفل دکمه‌ای مزین به نشان امگا مجهز است”
  • “جنس بند: استیل ضدزنگ”

Open research questions

  • What is the specific manufacturer reference number for this 28mm quartz model?
  • Does this specific watch belong to the early or late production run of the 1990s?

Source evidence

Recorded claims and source quotations for Omega Seamaster 300 Mini
FieldSource-reported valueSource quotation
MakerOmega“برند: Omega”
ModelSeamaster 300 Mini“مدل: Seamaster 300 Mini”
Case MaterialStainless steel“جنس بدنه: فولاد ضدزنگ”
Case Diameter28 mm“قطر قاب: ۲۸ میلی‌متر”
Movement TypeQuartz“نوع موتور: کوارتز”
Dial PatternWave pattern“طرح صفحه: آبی با الگوی موج‌دار”
Clasp TypeDeployant“نوع قفل: قفل دکمه‌ای تاشو (Deployant)”
Period1990s“Period: دهه ۱۹۹۰ میلادی”

Visible details

  • Blue rotating bezel with 60-minute scale
  • Date aperture at 3 o'clock position
  • Luminescent applied indices and hands
  • Omega logo on crown

Research qualifications

  • The specific reference number is not provided in the source text
  • The exact year of manufacture within the 1990s decade is unverified

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

Consulted source

ساعت Omega Seamaster 300 Mini

Reviewed 2026-11-02 · Record beece4ba93

Terms in this record

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