Omega Speedmaster Speedmaster Professional Moonwatch Sapphire Sandwich / Strap
Reference 3873.50.31
About this watch
The Omega Speedmaster Professional Moonwatch Sapphire Sandwich, also known as the 3873.50.31, is a testament to the brand's rich history and commitment to precision. This luxury watch features a stunning black dial with contrasting white stick and dot indexes, giving it a classic yet modern vibe suitable for both formal and casual occasions. The round stainless-steel case strikes a perfect balance between presence and elegance, measuring 42mm in diameter. A sapphire crystal on both the front and back of the watch enhances durability and provides a stunning view of the intricate movement through the open case back. With its iconic design, reliable Omega caliber 1863 movement, and versatile wearability, this watch earns its place in any collection. Whether you're a history buff, a watch connoisseur, or someone looking to elevate your style, the Speedmaster is a worthy companion. It's not just about telling time; it's about cherishing every moment.
Key Features
- Omega caliber 1863 movement
- 48-hour power reserve
- 21,600 vibrations per hour
- Chronograph function for timing events
- Sapphire crystal on front and back of the watch
- Water resistance up to 50 meters
- Leather strap with secure buckle
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch Sapphire Sandwich / Strap
- Reference
- 3873.50.31
- Movement
- 1863
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster Chrono Blue Dial 43mm - 329.30.43.51.03.001 Full Set - Like New Condition - Houston, TX 🔥💰6,297💰🔥 + 🏷️](https://preview.redd.it/rgljxhlw67zg1.jpg?width=640&crop=smart&auto=webp&s=6dc971e851dde4670792b0af5003cf8ef48e697f)
Omega Speedmaster Chrono Blue Dial 43mm - 329.30.43.51.03.001 Full Set - Like New Condition - Houston, TX 🔥💰6,297💰🔥 + 🏷️
The Omega Speedmaster Chronoscope is a stylish and functional wristwatch designed for unisex adults, featuring a blue dial with spiral pattern and Arabic numerals, housed in a stainless steel case.
- Condition: Like new condition, both mechanically and cosmetically.
- Case size: 43mm
- Movement type: Mechanical manual
- Water resistance: 50m
![[WTS] Omega Speedmaster OEM Rubber Strap & Deployant Clasp](https://preview.redd.it/uhlq2l2m66zg1.jpg?width=640&crop=smart&auto=webp&s=ffa46be41754748ce05f5d8a125d36da23ff676b)
Omega Speedmaster OEM Rubber Strap & Deployant Clasp
Up for sale is an Omega Speedmaster's OEM rubber strap and its clasp, in excellent condition. The deployant clasp was not used due to personal preference.
- Material: rubber
- Clasp type: deployant
![[WTS] Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only](https://preview.redd.it/cr4moqv246zg1.jpeg?auto=webp&s=256afc1c03316f767919a3ebf47e7289b33e492d)
Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only
A complete Omega Speedmaster Reverse Panda set, featuring a 39mm case on an OEM bracelet designed for wrists up to 7 inches in circumference.
- Condition: 7.75/10 with wear around bezel and some flea bites on crystal
- Bracelet size: 39mm diameter can fit ~7inch wrist with 20 links
- Box condition: complete
![[WTS] Omega Speedmaster Date 3513.50 – 39mm Automatic Chronograph – Black Dial – Full Set Serviced Price : 2350$](https://preview.redd.it/01pd6fpem5zg1.jpg?width=640&crop=smart&auto=webp&s=b0770720a40259fdb186951cf90baf9c5b278dc0)
Omega Speedmaster Date 3513.50 – 39mm Automatic Chronograph – Black Dial – Full Set Serviced Price : 2350$
This classic Omega Speedmaster Date ref. 3513.50 is a 39mm automatic chronograph with a black dial, part of the less-highly-regarded Speedmaster line. It's perfect for everyday wear with its iconic Speedy DNA.
- Condition: Very good used condition, minor scratches on case and strap
- Case size: 39mm diameter
- Thickness: ~14mm
- Lug width: 18mm
![[WTS] Omega Speedmaster Date 3211.31.00 — 40mm Panda Dial — Cal. 1164 (Fresh Service) — $2,399 Shipped (Tariff Covered)](https://preview.redd.it/jyxuaeqjl5zg1.jpg?width=640&crop=smart&auto=webp&s=34c2a946de9b50a1ecf29d7ddf54bfdfa31ec48e)
Omega Speedmaster Date 3211.31.00 — 40mm Panda Dial — Cal. 1164 (Fresh Service) — $2,399 Shipped (Tariff Covered)
This Omega Speedmaster Date features a clean silver panda dial with black subdials and red accents, powered by Cal. 1164 with chronograph functions that operate as they should.
- Condition: Pre-owned with honest wear
- Case size: 40mm diameter
- Lug-to-lug length: 46mm
- Thickness: 15mm
![[WTS] Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!](https://preview.redd.it/v4spg4k7l5zg1.jpg?width=640&crop=smart&auto=webp&s=f750638b10691ce800cb7f5ab6ac3bee335c609b)
Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!
A pre-owned Omega Speedmaster Racing Chronograph in good condition, featuring a 44.25mm size and coming with its original box, papers, and stainless steel bracelet.
- Condition: pre-owned with minor wear
- Size: 44.25mm
- Bracelet material: stainless steel
- Payment methods: Zelle, bank wire, or PayPal F&F
![[WTS] Omega Speedmaster Broad Arrow Ref. 321.10.44.50.01.001](https://preview.redd.it/ooisvwzvi5zg1.jpeg?auto=webp&s=a4bc75bbc17f57905f6b509b1f418960a15522ba)
Omega Speedmaster Broad Arrow Ref. 321.10.44.50.01.001
This Omega Speedmaster Broad Arrow features a 44mm stainless steel case, automatic Co-Axial Caliber 3313 movement, and a textured black dial.
- Condition: Great condition overall, sapphire crystal clean, textured black dial pristine, stainless steel case shows light wear, automatic movement running good
- Case Size: 44mm diameter
- Movement: Automatic Co-Axial Caliber 3313
- Bracelet Length: fits a 7.5in wrist
![[WTS] Omega Speedmaster 145.022-69 Excellent Condition $4,499](https://preview.redd.it/a8bzy7tai5zg1.jpeg?auto=webp&s=21c12f08bdbff7d2de0199581ad1019bad15d947)
Omega Speedmaster 145.022-69 Excellent Condition $4,499
This is a vintage Omega Speedmaster Professional Moonwatch in excellent condition, featuring a 'stepped' dial and the Caliber 861 movement.
- Condition: Excellent Condition
- Case Size: 42mm diameter
- Case Thickness: 14mm
- Lug To Lug: 48mm
![[WTS] Omega Speedmaster 39mm Automatic 3513.82.00 Blue Dial — Cal. 1152 (Serviced) — $2,100 Shipped (Tariff Covered)](https://preview.redd.it/lewz11ed65zg1.jpg?width=640&crop=smart&auto=webp&s=72e8cddc7a2a988a7d891734d1075365abd2ae8e)
Omega Speedmaster 39mm Automatic 3513.82.00 Blue Dial — Cal. 1152 (Serviced) — $2,100 Shipped (Tariff Covered)
This Omega Speedmaster is a 39mm automatic watch featuring a Cal. 1152 movement and a blue dial.
- Movement: Cal. 1152
- Size: 39mm diameter