Omega Seamaster Aqua Terra 150M Chronometer Reference: 2502.33.00 | 42.2mm "Big Size" | Factory Unpolished Complete Set

Factory Unpolished Complete Set Quintessential Modern Classic.

​For the discerning collector who demands absolute perfection, this first-generation Omega Seamaster Aqua Terra presents a rare opportunity to own a pure piece of horological history. Featuring the highly coveted and rare 42.2mm "Big Size" case, this specific reference (2502.33.00) is widely regarded by enthusiasts as the most elegant layout in the Aqua Terra’s storied lineage.

​The Aesthetics of Distinction

​The dial is a masterclass in understated luxury. A flawless, crisp silver-white canvas serves as the backdrop for striking, diamond-polished arrow markers and lancet hands—finished in a mesmerizing, deep blued steel that captures the light brilliantly at every angle. It strikes a flawless balance between maritime sports heritage and high-society dress elegance.

​Uncompromised Collector Quality

​Factory Unpolished State: Preserved in its original, unpolished condition, the case maintains the razor-sharp lug chamfers, crisp brushed facets, and mirror-finished bezel exactly as it left Switzerland.

​The Heart of Innovation: Powered by the early Omega Co-Axial Caliber 2500, a chronometer-certified movement that marked a revolutionary leap forward in Swiss mechanical watchmaking.

​The Ultimate Full Set: This piece is accompanied by its complete archival ensemble. Unlike the standard flaking red leather boxes of the era, this investment-grade example is housed in Omega’s premium, pristine wooden presentation box, complete with the outer box, original instruction manual, serialized hangtag, and all matching pictogram and warranty cards.

​Specifications:

​Brand: Omega

​Model: Seamaster Aqua Terra 150M

​Reference Number: 2502.33.00

​Case Diameter: 42.2 mm

​Movement: Automatic Co-Axial Caliber 2500 (Chronometer Certified)

​Dial Color: Silver/White with Blued Steel Hands & Markers

​Bracelet: Stainless Steel Omega Style (Full Links)

​Scope of Delivery: Original Outer Box, Premium Wooden Box, Serialized Hangtag, Operating Instructions, Cardholder, Pictogram Card, and International Warranty Card.

​A Note for the Connoisseur: > In a secondary market flooded with heavily polished, incomplete watches, a museum-grade, unpolished full set like this stands entirely alone. Secure a foundational piece of Omega’s modern golden era. Available exclusively through our curated collection.