Omega Railmaster Seamaster Aqua Terra 150M Automatic 42.2 Railmaster Chronograph / Brown Alligator

Reference 2812.52.37

Omega Seamaster Aqua Terra 150M Automatic 42.2 Railmaster Chronograph / Brown Alligator

About this watch

The Omega Railmaster 2812.52.37 Seamaster Aqua Terra 150M Automatic 42.2 Chronograph is a masterpiece of luxury watchmaking, combining stunning design with robust performance and rich heritage. Its round stainless steel case measures 42.2 mm, featuring a black dial with mixed indexes and arrow hands, providing exceptional readability. The Omega caliber 3205 self-winding chronograph movement is a marvel of engineering, delivering smooth, precise chronograph functionality and exceptional accuracy. With a water resistance rating of 150 meters, this watch can handle anything life throws at it. Its brown alligator leather strap adds a touch of luxury and comfort, making it the perfect companion for any occasion.

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MSRP: $4,750

Market Price: $2,559

Key Features

42.2mm round stainless steel case
Black dial with mixed indexes and arrow hands
Omega caliber 3205 self-winding chronograph movement
150m water resistance rating
Brown alligator leather strap
Sapphire glass cover for durability and scratch resistance

Specifications

Brand

Omega

Family

Railmaster

Model

Seamaster Aqua Terra 150M Automatic 42.2 Railmaster Chronograph / Brown Alligator

Reference

2812.52.37

Movement

3205

Movement Features

Hours, Minutes, Small Seconds
Chronograph, Column wheel

Case

Stainless Steel 42.2mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

2025 Omega Railmaster Black Dial w/Bracelet - Full Kit

Omega - 235.10.38.20.06.001 · $4,699

The new Railmaster 38-mm reference in black, featuring a Co-Axial Master Chronometer Calibre 8806 and dual-color lume.

Condition: Near-mint with insignificant hair-line scratches
Case Dimension: 38mm diameter
Lug To Lug: 45mm length
Lug Width: 19mm width

Posted at

Nov 5, 2025, 8:56 PM

Active

View listing on r/WatchExchange

2025 Omega Seamaster Railmaster 235.12.38.20.06.001

Omega - 235.12.38.20.06.001 · $4,500

A 2025 Omega Seamaster Railmaster in excellent condition, featuring a clean sapphire crystal and black dial, powered by an automatic Calibre 8806 Master Chronometer movement.

Condition: Excellent condition overall, minimal wear on stainless steel case
Case size: 38mm diameter
Movement type: Automatic

Posted at

Nov 5, 2025, 9:53 AM

Active

View listing on r/WatchExchange

Omega Seamaster Railmaster XXL 2806.52.37

Omega - 2806.52.37 · $2,799

A large watch suitable for the larger gentleman, featuring a modified Unitas movement and excellent lume.

Condition: Overall good condition, used strap
Case Size: 49.2mm diameter
Movement: Omega 2201, modified Unitas movement
Water Resistance: 150m depth rating

Posted at

Nov 4, 2025, 8:16 PM

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2000s Omega Seamaster Aqua Terra Railmaster 36mm ref. 2504.52

Omega - 2504.52 · $5,700

A 2000s Omega Seamaster Aqua Terra Railmaster 36mm with a stainless steel case and black dial. The watch features an automatic movement, Super-LumiNova lume, and a sapphire crystal.

Condition: Normal wear in the form of a few hairlines, faint scratches, and tiny nicks throughout, some micro patina on hands
Case Material: Stainless steel
Diameter: 36 mm
Lug Width: 19 mm

Posted at

Nov 2, 2025, 4:51 PM

Active

View listing on r/WatchExchange