Omega

Seamaster Automatic Explorer dial 2848/2846-15SC

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The Blueprint
Brand Omega
Model Seamaster
Reference 2848/2846-15SC
Serial Nr 16'714'807
Year Circa 1959
Material Stainless Steel
Diameter 34mm
Lug to Lug 42mm
Crystal Plexiglass
Movement Automatic - Cal. 501
Lug Width 18mm
Bracelet / Strap Aftermarket beige leather strap
Original box and papers
Box: No
Papers: No
Fits wrists up to: -
This watch was photographed on a 175mm / 6.9inch wrist.
The Condition Report

This is a vintage Omega Seamaster, reference 2848 / 2846, from circa 1959, notable for its original condition and "Explorer" style dial.

The stainless steel case is believed to be unpolished. Evidence of this can be seen in the sharp, well-defined bevels on the lugs. While the case shows various superficial scratches and dings consistent with its age, the Seamaster hippocampus logo on the caseback remains exceptionally crisp, and the "Waterproof" engraving is still clearly visible. The watch retains its original signed "clover-style" crown. Just below the crown on the external caseback, a service date from 1963 is visible. While this could have been polished away, we believe it is an integral part of the watch’s history. The engraving is very small and only visible under strong light; therefore, we chose to leave it untouched to preserve its originality.

The dial is an "Explorer" configuration, with applied Arabic numerals at 3, 6, 9, and 12 o'clock, and baton markers for the remaining hours. The dial surface has aged to a beautiful and even cream patina. A significant feature is the original luminous material, which is fully intact on both the hands and the hour markers a rare state of preservation. The lume has aged to a consistent and attractive orange color. The hands show more pronounced oxidation, the seconds hand has just been mounted and was ordered from Omega because the old hand had lost its very tip due to the aging process.

The watch is fitted with its original Omega-signed plexiglass crystal, identified by the etched logo at the center. The crystal shows some surface scratches and two small, stable cracks: one near 6 o'clock and another between 11 and 12 o'clock. It is powered by the Omega Caliber 501 automatic movement and comes on an aftermarket beige strap.

 

Performance Log
Upon arrival, every watch is verified for authenticity. The movement is then completely disassembled, and each individual component is cleaned. Once reassembled and lubricated, the timepiece undergoes a rigorous 72-hour test in all dynamic positions.

The technical values listed below are merely a snapshot recorded in the "Dial Up" position. Variations in amplitude or rate compared to modern standards are physiological for vintage timepieces.

Furthermore, strictly adhering to our philosophy of preservation, we prioritize retaining original components whenever possible, even if this results in slightly lower performance metrics, provided they do not compromise the reliability and correct functioning of the timepiece.
Service Date 20 December 2025
Daily Rate +7 s/d
Amplitude 270°
Beat Error 0.44 ms
Lift Angle 49°