Omega Seamaster Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator

Reference 511.13.40.20.04.002

Omega Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator

About this watch

The Omega Seamaster Master Co-Axial 39.5 Singapore Edition is a masterpiece of horology, boasting exceptional craftsmanship and a unique story tied to the vibrant city of Singapore. This limited edition watch combines modern technology with classic design, making it a versatile companion for both formal and casual occasions. The stunning white dial features a glossy finish, stick and dot indexes, and Feuille hands that ensure readability while maintaining a sleek profile. The 39.5 mm stainless steel case strikes a perfect balance between boldness and wearability, paired with an alligator leather strap that enhances its luxurious feel. With a water resistance of up to 60 meters, this watch is more than just a pretty face, handling splashes and brief immersion while maintaining accuracy and performance even in challenging conditions. The Omega Seamaster Master Co-Axial 39.5 Singapore Edition stands tall in the realm of luxury watches, its blend of sophistication, precision, and limited availability making it a worthy addition to any collection.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega caliber 8800 self-winding movement
Co-Axial escapement reducing friction for longevity and reliability
55-hour power reserve
Chronometer certified by Swiss Federal Institute of Metrology (METAS)
Resistant to magnetic fields up to 15,000 gauss
Stainless steel case with sapphire crystal glass
39.5 mm diameter with 20 mm lug width
White dial with glossy finish and stick/dot indexes

Specifications

Brand

Omega

Family

Seamaster

Model

Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator

Reference

511.13.40.20.04.002

Movement

8800

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Stainless Steel 39.5mm

Dial Color

White

Crystal

Sapphire

Water Resistance

Current Listings

Omega Seamaster Diver 300M 210.32.42.20.03.001 Blue 2022 Full Set - $4,395

Omega - 210.32.42.20.03.001 · $4,395

Up for sale is a Omega Seamaster Diver 300m Blue, a 2022 model with various accessories including inner and outer box, warranty cards, and instructions manual.

Condition: Excellent condition with minimal signs of wear
Year: 2022
Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual, Hang Tag

Posted at

Feb 14, 2026, 12:08 PM

Active

View listing on r/WatchExchange

Omega Seamaster SMP300 Titanium NTTD - 210.90.42.20.01.001 - Full Set

Omega - 210.90.42.20.01.001 · $8,625

An Omega Seamaster SMP300 Titanium NTTD in excellent working order.

Condition: Fantastic condition with minor hairlines on case, clasp, or bracelet
Bracelet material: titanium mesh

Posted at

Feb 14, 2026, 12:04 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega - 220.10.41.21.06.001 · $5,495

This Omega Seamaster Aqua Terra Grey is a 2023 model, featuring a 41mm case.

Condition: Excellent condition with minimal signs of wear
Case Size: 41mm diameter

Posted at

Feb 14, 2026, 12:02 PM

Active

View listing on r/WatchExchange

Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001

Omega - 233.30.41.21.01.001 · $3,400

An Omega Seamaster 300 Heritage - 41mm Black Dial watch in excellent mechanical working order.

Condition: Fantastic with minor hairlines
Case size: 41mm
Dial color: Black

Posted at

Feb 14, 2026, 11:53 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 36mm 2504.80 Full Set

Omega - 2504.80 · $3,700

Omega Seamaster Aqua Terra 36mm watch in great condition, with a deployant rubber strap from Helvetus.

Condition: Great condition with minor wear
Bracelet condition: minor wear

Posted at

Feb 14, 2026, 11:21 AM

Active

View listing on r/WatchExchange

Omega Seamaster Professional 41mm 300m ref. 2531.80 Automatic full set box and card 2004

Omega - 2531.80 · $3,530

The Omega Seamaster Professional 41mm 300m is a legendary watch with a rich maritime history, designed for racing over oceans and diving. It features a marine blue insert, crimson red tip seconds hand, and is powered by the Omega cal. 1120.

Condition: Visible wear and polish
Case size: 41mm diameter
Depth rating: 300m
Lug width: 20mm

Posted at

Feb 14, 2026, 10:52 AM

Active

View listing on r/WatchExchange

20mm Omega Seamaster SMP300 Black Rubber Strap + Clasp - Medium

Omega - CVZ0152752 · $450

This is a black rubber strap with an 18mm Omega clasp for the Seamaster SMP300.

Material: black rubber strap
Strap Size: 20mm
Clasp Ref: 94521883

Posted at

Feb 14, 2026, 4:25 AM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M James Bond 210.30.42.20.03.002 Full Set

Omega - 210.30.42.20.03.002 · $6,497

A modern classic Omega Seamaster Diver 300M ‘James Bond’ with a blue wave-dial and a 42mm stainless steel case, built around Omega’s dive heritage.

Condition: Good with minor wear
Case Size: 42mm diameter
Case Material: stainless steel
Bezel Type: blue ceramic dive bezel

Posted at

Feb 14, 2026, 1:01 AM

Active

View listing on r/WatchExchange

Vintage Omega Seamaster Jumbo Day Date Sparkle Dial w/ Original Strap & Buckle Ref 168.034 JUST $1250 SHIPPED!

Omega - 168.034 · $1,250

A 1972 Omega Seamaster Jumbo Day Date with a vertical sparkle dial, unpolished stainless case, and original strap and buckle. The watch has an automatic movement that was recently regulated and keeps great time.

Condition: Gorgeous, really beautiful condition, as close to mint as you’ll find.
Diameter: 39mm
Case size: 42mm
Year: 1972

Posted at

Feb 13, 2026, 9:49 PM

Active

View listing on r/WatchExchange