1. Historical Origin
This replica accurately reproduces the classic design of the Omega Speedmaster Professional Moonwatch (Ref. 310.30.42.50.01.002), the original model of which was carried on the moon by the Apollo 11 astronauts. We pay special attention to the restoration of the following historical details:
Breakthrough in historical accuracy
- Asymmetric case:Perfectly reproduces the special design of protecting the crown in 1969
- "Dot over 90":The position of the dot above the 90 scale on the bezel is accurate to 0.1mm
- Stepped dial:The three-layer structure is consistent with the original
2. Three-dimensional deconstruction
2.1 Dial craftsmanship

The black dial uses a five-layer spraying process to achieve a matte effect that is exactly the same as the original:
Chronograph sub-dial
The 3-6-9 o'clock sub-dial uses the same record texture as the original, with a texture spacing of 0.2mm
Luminous coating
The hour markers and hands are filled with Swiss Super-LumiNova® C3 luminous material
Brand logo
The Ω logo uses 24K gold electroplating technology, and the font thickness error is ±0.02mm
It is particularly worth noting that we have improved the following details to enhance the wearing experience:
- Hour and minute hand length adjustment +0.3mm to improve nighttime readability
- The red part at the end of the chronograph second hand is extended by 1.2mm
2.2 Case Engineering

The case is made of medical-grade 316L stainless steel, processed by five-axis CNC and hand-polished:
Structural parameters |
Original |
Replica |
Difference |
Lug width |
20mm |
20mm |
0% |
Crown diameter |
5.8mm |
5.7mm |
-0.1mm |
Button resistance |
2.5N |
2.3N |
-0.2N |
Improved wearing comfort
The curvature of the back of the lugs is increased by 3° to reduce the pressure on Asian wrists
2.3 Bottom cover secret

The bottom design perfectly reproduces the hippocampus relief and inscription:
- The three-dimensional height of the seahorse pattern is 0.35mm (the original version is 0.4mm)
- The number of edge serrations is 60 (the same as the original version)
- The words "STAINLESS STEEL" are micro-carved
3. Movement Revealed

Equipped with a customized manual winding chronograph movement ST19 improved version, key technical innovations:
Power system
- Dual barrel design
- Power reserve 50±5 hours
Chronograph module
- Vertical clutch device
- Column wheel control
Precision adjustment
- Screw fine-tuning balance
- Daily error ±12 seconds
Maintenance recommendations
- Full maintenance every 3 years
- Continuous use of the timing function does not exceed 12 hours
- Stop immediately if resistance is encountered during winding
5. Authenticity Identification Guide
Help customers identify key features of high-quality replicas:
Distinguishing points |
Low-end imitations |
This version |
Bezel numbers |
Blurred printing |
Laser engraving + enamel filling |
Chronograph buttons |
Loose travel |
Two-stage clear feel |
Crown LOGO |
Flat printing |
Three-dimensional relief |
Professional advice
It is recommended to check the following three key points after receiving the goods: the bezel rotation damping feeling, the timing zeroing accuracy, and the crown thread smoothness.