Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / China Explorer Yellow

Reference 2812.54.82

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / China Explorer Yellow is a limited-edition masterpiece that marries bold design with robust functionality. Crafted from high-quality stainless steel, this watch boasts a stunning black dial with arrow-shaped hands and mixed indexes. The sapphire crystal glass ensures durability and scratch resistance, while the closed case back maintains a sleek profile. At its heart lies the Omega caliber 3313 movement, renowned for its precision and reliability. Boasting a power reserve of 52 hours and a frequency of 28,800 vibrations per hour, it's designed for performance and longevity. The chronograph function offers smooth operation and precise timing, making it an excellent tool for those who need accuracy in their measurements. With a water resistance rating of 150 meters, this watch is perfect for water sports enthusiasts and everyday wearers alike. The stainless steel case and sapphire crystal ensure that the watch will remain in excellent condition even after years of use. This limited-edition piece holds its value exceptionally well, thanks to its exclusivity, craftsmanship, and performance.

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Key Features

Omega caliber 3313 automatic movement
Chronograph function with column wheel mechanism
Sapphire crystal glass for durability and scratch resistance
Water resistance of 150 meters
Limited edition of 351 units
Stainless steel case and bracelet
Adjustable stainless steel bracelet

Specifications

Brand

Omega

Family

Railmaster

Model

Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / China Explorer Yellow

Reference

2812.54.82

Movement

3313

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel
Co-Axial Escapement

Case

Stainless Steel 42.2mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Railmaster 2803.52.31 Full Set with Box & Papers, Freshly Serviced

Omega - 2803.52.31 · $2,925

This Omega Railmaster from the early 2000s features a classic 39.2mm design, dating back to 2006. The watch has been recently serviced and comes with a brand new grey leather strap.

Condition: Superb
Year: 2006
Case size: 39.2mm

Posted at

May 26, 2026, 6:42 PM

Active

View listing on r/WatchExchange

Omega Railmaster 2502.52 41mm - $2,490

Omega - 2502.52 · $2,490

Up for sale is my great condition Omega Railmaster 2502.52, This watch measures at 41mm and has an automatic Omega 2403 movement.

Condition: Very good condition for its age
Case size: 41mm diameter
Movement: Automatic Omega 2403

Posted at

May 24, 2026, 10:01 PM

Active

View listing on r/WatchExchange

Omega Railmaster. Clean. Full kit.

Omega - Railmaster · $2,795

The Omega Railmaster is a full kit with box and papers, available for sale from WatchExchange Enterprises in NJ USA.

Box papers: true

Posted at

May 23, 2026, 10:28 AM

Active

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40mm Omega Seamaster Railmaster Black Dial - Ref 220.12.40.20.01.001 - FULL KIT (Box & Cards)

Omega - 220.12.40.20.01.001 · $2,500

The Omega Seamaster Railmaster features a black dial with vertical linear-brushed texture, recessed vintage-colored lume markers, and a signature 'lollipop' seconds hand. It has been an honest daily-wear tool watch.

Condition: Daily-wear tool watch with visible scuffs on the bezel and top-left lug
Movement: METAS-certified Calibre 8806

Posted at

May 22, 2026, 11:28 AM

Active

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Omega Railmaster 2503.52 39mm - $2,490

Omega - 2503.52 · $2,490

This Omega Railmaster 2503.52 is a steel cased watch on an original Omega Steel bracelet, featuring a sapphire crystal and a dial with minor damage.

Condition: 8.9/10 - minor damage on dial, patina on hands, minimal hairlines
Case Size: 39mm diameter
Bracelet Size Fit: up to 7-7.25 inch wrists depending on wrist shape
Shipping Method: Fedex Priority Shipping

Posted at

May 22, 2026, 4:11 AM

Active

View listing on r/WatchExchange

Omega Railmaster 2502.52 41mm - $2,590

Omega - 2502.52 · $2,590

Up for sale is my great condition Omega Railmaster 2502.52, measuring at 41mm with an automatic Omega 2403 movement.

Condition: Very good condition for its age
Case size: 41mm
Movement type: Automatic
Bracelet material: Steel

Posted at

May 17, 2026, 9:36 PM

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price reduction! 2026 Full Set Omega Railmaster 235.10.38.20.06.001

Omega - 235.10.38.20.06.001 · $3,999

This Omega Railmaster features a 38mm steel case with a gray gradient dial and is available for sale in excellent pre-owned condition. The watch includes a full set of accessories, making it an attractive option for those looking to purchase this model.

Condition: excellent pre-owned condition
Case size: 38mm diameter
Bracelet material: steel
Dial color: gray gradient

Posted at

May 14, 2026, 4:47 PM

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Omega Seamaster Railmaster

Omega - 235.12.38.20.06.001 · $4,400

The Omega Seamaster Railmaster is a highly legible watch with everyday versatility, known for its functionality and simplicity.

Condition: good with normal wear on the case
Bracelet type: AM Uncle Seiko bracelet
Movement: Co-Axial 8806

Posted at

May 13, 2026, 9:55 PM

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Omega Railmaster - 220.10.40.20.03.001 - Blue - Steel - 40mm - Mint

Omega - 220.10.40.20.03.001 · $3,795

This Omega Railmaster is a pre-owned, mint condition watch with a blue dial and stainless steel case. It has a 40mm diameter and features an automatic movement.

Condition: Pre-Owned - Mint
Case Size: 40mm diameter
Bracelet Type: Stainless Steel
Movement Type: Automatic

Posted at

Mar 10, 2025, 12:58 AM

Active

View listing on RolexForums