Omega Speedmaster Speedmaster Professional Missions Gemini XI
Reference 3597.09.00
About this watch
The Omega Speedmaster Professional Missions Gemini XI, with its reference number 3597.09.00, is a piece of horological history that embodies the spirit of adventure and precision that Omega is renowned for. This limited edition, produced between January 1997 and July 1998, features a striking black dial, a robust stainless steel case, and a legendary Omega caliber 1861 movement. With only 200 units produced, this watch is a true collector's item and a testament to Omega's commitment to excellence and innovation.
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Key Features
- Omega Caliber 1861 Hand-Wound Movement
- 42mm Stainless Steel Case with Plexiglass Crystal
- Tachymeter Bezel for Precise Measurements
- Limited Edition of Only 200 Units Produced
- 50m Water Resistance Suitable for Light Swimming
- Stainless Steel Bracelet with 20mm Lug Width
- Iconic Design that Stands the Test of Time
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Missions Gemini XI
- Reference
- 3597.09.00
- Movement
- 1861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Plexi
- Water Resistance
- 50
Current Listings
![[WTS] 1971 Omega Speedmaster Ref.145022-69 “ Straight Writing” $10,500 AUD / $7,800USD](https://preview.redd.it/p1wqu6oruszg1.jpg?width=640&crop=smart&auto=webp&s=b6c4279887eb83cb248ab034bc28d066e488717d)
1971 Omega Speedmaster Ref.145022-69 “ Straight Writing” $10,500 AUD / $7,800USD
A clean and honest early 1970s Omega Speedmaster Professional. Fully serviced by LWC in Perth in February 2026.
- Condition: Honest vintage condition, running well
- Case Material: Stainless steel
- Case Size: 42mm diameter
- Movement Type: Manual wind chronograph (cal. 861)
![[WTS] Genuine Omega Leather Strap, Speedmaster](https://preview.redd.it/9ggqk406dszg1.jpg?width=640&crop=smart&auto=webp&s=146302a8ec53e02613f38f63664ddc2fb82478d4)
Genuine Omega Leather Strap, Speedmaster
Up for sale is a genuine leather Omega Speedmaster band with a stainless steel deployant clasp, characterized by its light and comfortable design.
- Condition: Genuine leather strap with slight wear
- Width: 20mm
- Clasp material: stainless steel
- Shipping options: US shipping via FedEx or UPS
![[wts] 2024 Omega Speedmaster Moonphase
304.33.44.52.03.001 $7299](https://preview.redd.it/5e443hdy1szg1.jpg?width=640&crop=smart&auto=webp&s=2e0b5e27c1c48dadaf0a287beaa9cee072ac51d3)
2024 Omega Speedmaster Moonphase 304.33.44.52.03.001 $7299
This listing features a 2024 Omega Speedmaster Moonphase with two photo-realistic moons, one of OMEGA's most iconic timepieces.
- Condition: Pre Owned, Cosmetic Condition: 9/10
- Case Size: 44mm diameter
- Movement: 9904
- Power Reserve: 60 Hours
![[WTS] Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, excellent, OEM 1469/811](https://preview.redd.it/jpd7p9tprrzg1.jpg?width=640&crop=smart&auto=webp&s=daf047db7f639e5decb182270fd5228c5e78817f)
Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, excellent, OEM 1469/811
A vintage Omega Speedmaster Reduced bracelet set with 22 links, made of stainless steel and featuring an original Omega folding clasp.
- Condition: Excellent (94/100)
- Material: Stainless steel
- Metal finish: Original Omega finish
- Clasp type: Omega folding clasp
![[WTS] BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,790](https://preview.redd.it/0ctdydnehrzg1.jpeg?auto=webp&s=74ad23e135844c1f446503923b99563ecef8cfbb)
BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,790
The Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case with a hesalite front and solid case back powered by the updated caliber 3861 movement.
- Condition: Brand new in box with warranty
- Case size: 42mm diameter
- Case thickness: 13.2mm
- Lug width: 20mm
![[WTS] Omega Speedmaster Racing 44.25mm White Dial 329.33.44.51.04.001 Co-Axial Master Chronometer. Full Set $6,955](https://preview.redd.it/8e2el1rffrzg1.jpg?width=640&crop=smart&auto=webp&s=23b5ef063aaf4327147392722938c37fa7481009)
Omega Speedmaster Racing 44.25mm White Dial 329.33.44.51.04.001 Co-Axial Master Chronometer. Full Set $6,955
This Omega Speedmaster Racing Master Chronometer features a white 'racing dial' with black sub-dials, powered by the Caliber 9900 Co-Axial Master Chronometer movement.
- Condition: Pre-owned, excellent condition
- Case size: 44.25mm
- Water resistance: 50m
- Movement: Automatic Caliber 9900 (Master Chronometer certified)
![[WTS] (OEM) Omega Speedmaster 20 mm Flat Link Bracelet](https://preview.redd.it/4gi9pkutdrzg1.jpg?width=640&crop=smart&auto=webp&s=fcc234aa63e7b8736858f8d859cd00c58343baf8)
(OEM) Omega Speedmaster 20 mm Flat Link Bracelet
This is an OEM Omega Speedmaster bracelet with a flat link design, suitable for various Speedmaster models. It features a stainless steel construction and a vintage-style foldover clasp.
- Condition: Great, lightly used
- Lug width: 20mm
- Taper: 20mm to 15mm
- Material: Stainless Steel
![[wts] 2026 Omega Speedmaster “Reverse Panda”
310.30.42.50.01.004 $9599](https://preview.redd.it/dixxc09d8rzg1.jpg?width=640&crop=smart&auto=webp&s=4bf8012f1cb5b624a8cccca6d4f361f6b066e558)
2026 Omega Speedmaster “Reverse Panda” 310.30.42.50.01.004 $9599
A 2026 Omega Speedmaster "Reverse Panda" with a 42mm steel case and black dial.
- Condition: Preowned, Cosmetic Condition: 9.9/10, Fully Functional
- Warranty card date: February 2026
- Case size: 42mm diameter
- Movement: 3861 caliber
![[WTS] 2020 Omega Speedmaster Moonphase Black 304.30.44.52.01.001 Full Set - $7,995](https://preview.redd.it/gspicj1w5rzg1.jpg?width=640&crop=smart&auto=webp&s=4f31b287624cbbb37e9b06c3acc79014c5c095d6)
2020 Omega Speedmaster Moonphase Black 304.30.44.52.01.001 Full Set - $7,995
Up for sale is a Omega Speedmaster Moonphase Black, a 2020 model featuring a moon phase display.
- Condition: Excellent condition with minimal signs of wear
- Year: 2020
- Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual