Vintage 1998 Omega Seamaster 120M Ladies Blue Wave 2581.81 • STS 2026 • Full Set

There’s a quiet elegance to this watch that only Omega could create. The soft shimmer of the blue wave dial, the refined 26 mm case, and the effortless balance of sport and sophistication make this Seamaster 120M Ladies a piece that feels as beautiful today as it did in 1998.

Freshly refurbished by Swiss Time Services in 2026 and presented with a complete Omega set, it’s a watch that doesn’t just tell the time — it tells a story of care, craftsmanship, and timeless style.

A beautifully presented vintage 1998 Omega Seamaster 120M Ladies, reference 2581.81, featuring the iconic blue wave dial and classic Seamaster case profile. This example has undergone a comprehensive 2026 refurbishment by Swiss Time Services (STS) — one of the UK’s most respected Omega‑approved service centres — and is offered in exceptional cosmetic and mechanical condition.

The watch includes a Certificate of Authenticity, Watch Register certificate, STS service card, pressure‑test receipt, all original removed parts (excluding clasp), and a 24‑month guarantee from The Watch Box Atelier.

Case & Dimensions

• Year of production: 1998
• Serial number: 57830819
• Case material: Stainless steel (316L)
• Diameter: 26 mm (excluding crown)
• Depth: 9 mm including crystal
• Lug width: 13 mm
• Crystal: Brand‑new Omega sapphire crystal
• Water resistance: 120M / 400ft
• Pressure‑tested on: 01‑04‑2026

Pressure‑test results (Witschi Proofmaster M):

• Test 1: +0.5 bar — deformation +2.72 µm, tightness +2.4%/min — Pass
• Test 2: +10.0 bar — deformation +86.39 µm, tightness +9.9%/min — Pass

Caseback: Screw‑down with Omega Seahorse emblem
Crown: Brand‑new Omega crown with engraved Ω

Dial & Hands

• Dial: Blue wave pattern
• Indices: Applied polished steel batons
• Hands: Polished steel sword‑style
• Lume: Super‑LumiNova
• Date: At 3 o’clock

Bracelet & Clasp

• Bracelet: Original Omega 1471/815 stainless steel (Bond‑style)
• Width: 13 mm
• Length: 16 cm including case
• Clasp: Brand‑new Omega folding clasp with push‑button release (like‑for‑like replacement; naturally firm as brand new)

Movement

• Calibre: Omega 1424 quartz
• Jewels: 9
• Functions: Hours, minutes, seconds, quick‑set date
• Battery: Brand‑new (fitted during 2026 service)

New Omega Parts Fitted (2026 STS Service)

• Brand‑new Omega crown
• Brand‑new Omega sapphire crystal
• Brand‑new Omega folding clasp
• Brand‑new battery
• New gaskets/seals
• Fully pressure‑tested with documented results
• All original removed parts included (excluding clasp)

Included

• STS service card (02‑04‑2026)
• Pressure‑test receipt (01‑04‑2026)
• Omega inner & outer boxes
• Omega watch cushion
• Omega leather document wallet
• Omega pouch
• Omega instruction manual
• STS 2‑year service guarantee card
• Original STS refurbishment receipt
• Watch Register certificate
• Certificate of Authenticity
• All original removed parts (excluding clasp)

Guarantee
This watch is supplied with a 24‑month guarantee from The Watch Box Atelier, covering mechanical performance, timekeeping accuracy, battery function, and overall operational reliability.

Our guarantees are designed to provide confidence and clarity, offering support in the unlikely event of a functional issue. Cosmetic wear, accidental damage, misuse, or water‑ingress outside manufacturer specification are not covered.

A copy of the full guarantee document is available on request.

Why Buy From Us

• Over 40 Years of Experience: We understand the importance of authenticity, condition, and provenance.
• Zero Tolerance for Counterfeits: Every watch is verified, documented, and guaranteed authentic.
• Professional Presentation & Service: Expert packaging and fast, insured delivery.

Returns & Authenticity Guarantee

Every watch we sell is guaranteed to be 100% authentic. This piece has been fully inspected, pressure‑tested, and refurbished by Swiss Time Services (STS) — an Omega‑approved service centre — and is supplied with a Certificate of Authenticity, Watch Register certificate, and full supporting documentation.

We offer a 30‑day return period in line with standard terms and conditions. Returns must be unworn, in the same condition as received, and complete with all boxes, documents, and accessories.

Shipping & Packaging

• UK Shipping: Royal Mail Special Delivery Guaranteed (Next Day) — fully insured and tracked.
• International Shipping: All orders sent through eBay’s Global Shipping Programme (GSP).
• Packaging: Protective internal wrapping, reinforced outer packaging, fully insured.

Summary

A superb, investment‑grade vintage 1998 Omega Seamaster 120M Ladies, reference 2581.81, freshly serviced and refurbished by STS with multiple brand‑new Omega parts, full documentation, pressure‑test results, and all original components included (excluding the original clasp, which remains fully functional and has been retained). Presented with a complete Omega set and a 24‑month guarantee.

Price: £2,995