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, refined 26 mm case and effortless balance of sport and sophistication make this Seamaster 120M Ladies feel 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 underwent a comprehensive 2026 refurbishment by Swiss Time Services (STS), an Omega-approved UK service centre, 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 the clasp, and a 24-month guarantee from The Watch Box Atelier.

Case & Dimensions

• Year of production: 1998
• Serial number: 57830819
• Case material: 316L stainless steel
• Diameter: 26 mm excluding crown
• Depth: 9 mm including crystal
• Lug width: 13 mm
• Crystal: Brand-new Omega sapphire crystal
• Water resistance: 120M / 400 ft
• Pressure-tested: 01-04-2026
• Caseback: Screw-down with Omega Seahorse emblem
• Crown: Brand-new Omega crown with engraved Ω

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

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 bracelet
• Width: 13 mm
• Length: 16 cm including case
• Clasp: Brand-new Omega folding clasp with push-button release, a like-for-like replacement that is naturally firm as new

Movement

• Calibre: Omega 1424 quartz
• Jewels: 9
• Functions: Hours, minutes, seconds and quick-set date
• Battery: Brand-new, fitted during the 2026 service

New Omega Parts Fitted During 2026 STS Service

• Brand-new Omega crown
• Brand-new Omega sapphire crystal
• Brand-new Omega folding clasp
• Brand-new battery
• New gaskets and seals
• Fully pressure-tested with documented results
• All original removed parts included, excluding clasp

Included

• STS service card dated 02-04-2026
• Pressure-test receipt dated 01-04-2026
• Omega inner and outer boxes
• Omega watch cushion
• Omega leather document wallet
• Omega pouch
• Omega instruction manual
• STS two-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 provide confidence and clarity, offering support in the unlikely event of a functional issue. Cosmetic wear, accidental damage, misuse or water ingress outside the 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 and service: Expert packaging and attentive service.

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, 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 our standard terms and conditions. Returns must be unworn, in the same condition as received, and complete with all boxes, documents and accessories.

Summary

A superb 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 original removed components included, excluding the clasp. Presented with a complete Omega set and a 24-month guarantee.

Price: £2,250