Omega Seamaster Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator
Reference 511.13.40.20.04.002
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.
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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
- 60
Current Listings

Pre-Owned Omega Seamaster Aqua Terra 220.10.41.21.03.001
This pre-owned Omega Seamaster Aqua Terra is in 79% condition with marks on the lugs, bezel, and case. It has a stainless steel bracelet that accommodates up to 7 and 1/4 inches wrist size.
- Condition: 79% condition due to marks on the lugs, bezel, and throughout the case
- Water Resistance: 150 meters
- Case Size: 41mm diameter
- Material: Stainless Steel
Omega Seamaster Diver 300M Seaweed 210.30.42.20.10.001 Green Box/Papers 42mm
This is an Omega Seamaster Diver 300M Seaweed, a 42mm automatic watch with a dark forest green dial that can appear lighter in sunlight.
- Condition: Good
- Movement: Automatic Caliber 8800
- Case material: Steel
- Band material: Steel

Omega Seamaster Pro 300M SMP 2531.80 Blue Wave Dial OG Bond 007 Full Size 41mm Automatic - Fresh Service! #3620
This Omega Seamaster Pro SMP 300M Model 2531.80 is the 'OG' James Bond 007 watch as first seen in Tomorrow Never Dies, featuring a full size 41mm stainless case and blue wave dial.
- Condition: Very nice with minor signs of wear
- Movement: Automatic Omega 1120
- Case finish: Brushed sides and polished top finishes
- Dial condition: Blue bezel insert is near mint with no visible marks

Near Mint! Omega Seamaster Pro 20mm Bond Bracelet 1503/825 - Fits 41mm Bond Models 2531.80/2541.80
This Omega Seamaster Pro SMP bracelet is being sold with a non-profit organization, and it's a near mint condition stainless steel model that fits all 41mm non-chronograph Seamaster Pro models. It comes with 10 full links plus 2 half links, measuring approximately 8 inches when laid flat.
- Condition: near mint
- Lug width: 20mm
- Bracelet length: approximately 8"
- Links included: 10 full + 2 half
![[WTS] Omega Seamaster Aqua Terra (ref. 231.10.41.21.02.003) 41mm White Dial - Box and Papers - Mint](https://external-preview.redd.it/dc8uAUwGu73cwy8qzhL9HQHEOPwG-u1CUIU_hEGcViU.jpeg?auto=webp&s=aead64616eaf3c2c0c19cb025673b5c1bc07fc0a)
Omega Seamaster Aqua Terra (ref. 231.10.41.21.02.003) 41mm White Dial - Box and Papers - Mint
This Omega Seamaster Aqua Terra features a 41mm white dial, textured pattern, and comes with full set from 2016.
- Condition: Mint
- Size: 41mm diameter
- Bracelet type: full bracelet
![[WTS] Omega Seamaster Aqua Terra 2503.33 | Blue Indices $2,650](https://external-preview.redd.it/Z23CdO8aZF-HV3au4S_-y5Urc9qFx-tPMWIe49yDonE.jpeg?auto=webp&s=eb3b7243be141432cbe44aa81d710cb10aa67b37)
Omega Seamaster Aqua Terra 2503.33 | Blue Indices $2,650
This Omega Seamaster Aqua Terra features a white dial and blue indices, powered by the reliable 2500-series co-axial chronometer movement.
- Condition: Preowned - Good
- Movement: co-axial chronometer
- Diameter: 39mm
- Case material: unknown
![[WTS] Omega OEM Seamaster Pro 300M Black Rubber Strap](https://external-preview.redd.it/IxtfuXcJP7FwD54MsCGEPaWLxe4CCEiAdUE-2RfH48g.jpeg?auto=webp&s=b06738967d35aa72f96f19a095a3028c34061215)
Omega OEM Seamaster Pro 300M Black Rubber Strap
This Omega Seamaster Pro 300M is a high-end watch featuring a black rubber strap. The strap is in excellent condition with no signs of wear.
- Condition: great shape
- Material: Black Rubber Strap
- Strap type: 2-piece OEM strap
![[WTS] Omega Seamaster Railmaster 220.10.40.20.01.001](https://external-preview.redd.it/hz0IFCv4iqpDUY-2z-OGHm0Rcfqjgus1xnS9yCrHhy0.jpeg?auto=webp&s=2a33fdf55fec1552e434981da42bd4186f5b6dc5)
Omega Seamaster Railmaster 220.10.40.20.01.001
The Omega Seamaster Railmaster is a timepiece built for railway workers and scientists to handle magnetic fields up to 15,000 gauss. It features a 40mm stainless steel case with a vertically brushed black dial and vintage-style lume.
- Condition: near-mint condition, purchased in 2022 and hardly worn
- Case material: stainless steel
- Bracelet material: stainless steel
- Water resistance depth: 150 meters

Omega Seamaster 300M - Grey / Titanium Diver - 210.32.42.20.06.002 ( new )
A brand new Omega Seamaster 300M 42mm Grey Dial / Titanium Bezel on Rubber Strap, complete with all boxes, papers, booklets, hang tag and Omega Warranty Card dated May 2025.
- Condition: Brand New / Complete Set
- Case material: Stainless Steel
- Movement: 8806 Master Co-Axial Movement
- Size: 42mm diameter