THE PIECE
SEAMASTER
PROFESSIONAL 300M
The blue-wave Seamaster look in a smaller, everyday size. This pre-owned Omega Seamaster Professional 2561.80 pairs a 36 mm steel case with a blue dive bezel, skeleton hands and convenient quartz timekeeping. Bracelet fit: approximately 5.75 inches normally; 7.25 inches requires the diver’s extension to stay open.
WRIST CHECK / LIFESTYLE ILLUSTRATION
CLASSIC SEAMASTER.
COMPACT PROPORTIONS.
THE WATCH
THE BLUE WAVE.
YOUR EVERYDAY OMEGA.
The actual watch offered for sale. Review the close-ups and bracelet measurements before bidding.
THE WATCH
THE BLUE WAVE.
YOUR EVERYDAY OMEGA.
Want the recognizable Seamaster design in a watch that feels less oversized? This midsize 2561.80 gives you the blue wave-pattern dial, scalloped blue bezel and sculpted steel case in approximately 36 mm. The openworked hands and contrasting luminous markers keep the dial easy to read, while the stainless steel bracelet works with a shirt cuff or a T-shirt. It is a strong choice for someone who wants the character of an Omega sports watch in more compact proportions.
The Swiss quartz movement adds a practical reason to choose this reference: battery-powered timekeeping without daily winding. This particular example has visible pre-owned wear, documented in the original photographs, and comes as watch only with no box or papers. Its bracelet is currently sized for a smaller wrist—approximately 5.75 inches with the extension folded. The larger 7.25-inch measurement uses the deployed diver’s extension, so check that fit carefully before making it yours.
REFERENCE / 2561.80
THE DETAILS
- MODEL / REFERENCE
- Omega Seamaster Professional 300M / 2561.80
- CASE
- Approximately 36.25 mm, excluding crown; stainless steel
- BEZEL
- Blue unidirectional rotating bezel with elapsed-time scale
- CRYSTAL
- Sapphire
- CROWN / VALVE
- Screwdown crown and helium escape valve
- CASEBACK
- Stainless steel with Seamaster hippocampus design
- DIAL
- Blue wave pattern with luminous round and baton hour markers
- HANDS / DATE
- Skeleton-style hands, red-tipped seconds hand and date at 3 o’clock
- MOVEMENT
- Swiss quartz; battery powered
- FUNCTIONS
- Hours, minutes, central seconds and date
- BRACELET
- Stainless steel with Omega-signed Seamaster Professional folding clasp
- WRIST FIT
- Approximately 5.75 inches with diver’s extension folded
- EXTENDED FIT
- Approximately 7.25 inches only with diver’s extension left deployed
- CONDITION
- Pre-owned. Visible scratches and wear on case, bezel, bracelet and clasp; inspect the photographs
- WATER RESISTANCE
- 300M is the original factory marking, not a guarantee of current water resistance
- INCLUDED
- Watch with pictured bracelet. No box or papers
EVERY ANGLE
CLOSE UP.
Original photographs of the actual watch.
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