Omega Lady-Seamaster 300M 29mm ca 2015 Watch

Q: What is the Omega Lady-Seamaster 300M Ref. 212.30.28.61.01.001?
A: It is a sporty yet elegant Swiss-made divers' watch from circa 2015. This specific reference features a petite 28mm stainless steel case (often measured as 29mm with the bezel), a black dial with the classic wave pattern, a date display, and Omega’s reliable quartz precision. It combines the robust features of the professional Diver 300M line with a size tailored for smaller wrists.

Q: What movement powers this watch and how long does the battery last?
A: This model is powered by the Omega Calibre 1424, a high-precision Swiss quartz movement. The battery life is typically around 2–3 years. This movement features an End-of-Life (EOL) indicator: when the battery is running low, the seconds hand will jump in four-second intervals, signaling it is time for a replacement.

Q: How do I set the time and date on the Calibre 1424?
A: The Calibre 1424 features a "Time-Zone" function.
1. Date/Hour Adjustment (Position 1): Pull the crown to the first click. Turn it to move the hour hand forward or backward in one-hour jumps. This changes the date as you pass midnight, allowing you to adjust time zones without stopping the minutes.
2. Time Setting (Position 2): Pull the crown to the second click (fully out). This stops the seconds hand (hacking) and allows you to adjust the minute hand for precise time setting.

Q: Is the watch water-resistant and suitable for swimming?
A: Originally, this model was rated to 300 metres (1000 feet) and designed for diving. However, as a pre-owned piece from circa 2015, water resistance depends on the condition of the seals. We generally recommend treating it as splash-resistant only unless it has been recently pressure-tested by a professional watchmaker. Always ensure the screw-down crown is tightened before exposure to moisture.

Q: What is the extra knob at the 10 o'clock position?
A: That is the Helium Escape Valve (HEV). It allows helium to escape from inside the case during the decompression phase of deep saturation diving, preventing the crystal from popping off. For everyday wear, it is primarily a signature aesthetic feature of the Seamaster Diver 300M family and should remain screwed down.

Q: What materials are used for the crystal and bezel?
A: The watch is fitted with a domed, scratch-resistant sapphire crystal with anti-reflective treatment on the inside. The bezel is a unidirectional rotating divers' bezel with a black aluminium insert, designed to measure elapsed time safely.

Q: What size wrist will this watch fit?
A: This specific timepiece is sized to fit a wrist of approximately 15.5cm or smaller. It is a petite model. If you require a larger fit, extra links may be sourced separately, but please check your wrist measurement against this 15.5cm circumference before purchasing to ensure a comfortable fit.

Q: What condition is the watch in?
A: This piece is in Very Good condition with light traces of use. The stainless steel hardware is shiny with only light scratches consistent with careful wear. Please review the detailed photos to assess the external condition.

Q: Is the watch authentic and does it come with a warranty?
A: Yes, A Retro Tale guarantees 100% authenticity on every item we sell. This Omega Seamaster comes with a 12-month warranty on the movement. It is delivered as a watch only (no original box or papers unless specified in the accessories field), and we offer free insured shipping and a 14-day return policy.