
Seamaster Diver 300M
Ref.: 21030422003003
In this version of the collection celebrating the Seamaster’s 75th anniversary, the Omega Seamaster Diver 300M Summer Blue brings the diver’s journey from the surface to the depths onto the dial. The PVD-treated ceramic dial symbolises the deepening of the water with a gradient “Summer Blue” tone that darkens from the centre to the edges. The dial also bears the model’s signature wave pattern. The Grand Feu enamel diving scale on the blue ceramic bezel and the light blue Super-LumiNova indexes complete this colour harmony. The 42 mm stainless steel case and steel bracelet with diver extension turn the watch into a professional diving instrument. Calibre 8800, certified as a Master Chronometer by METAS, offers a 55-hour power reserve and water resistance to 300 metres.
Weekday orders placed before 13:00 are dispatched the same day.
Born in 1948, the Seamaster is the symbol of Omega’s bond with the sea. Introduced for its 75th anniversary, the Summer Blue collection reinterprets this bond through the airy blue of summer seas. In this collection, the Diver 300M turns colour into a story: a dive that stretches from the light blue of the surface to the dark tones of the depths.
Measuring 42 mm in diameter and 13.49 mm in thickness, the 316L stainless steel case features a screw-in, self-locking crown and a helium escape valve. The diving scale on the unidirectional rotating blue ceramic bezel is crafted in “Summer Blue” with Grand Feu enamel, fired at high temperature. Beneath a domed sapphire crystal glareproofed on both sides, the PVD-treated ceramic dial symbolises a diver’s descent with its gradient that darkens from the centre towards the edges. The Diver 300M’s signature wave pattern accompanies this gradient. Rhodium-plated skeleton hands and raised indexes filled with light blue Super-LumiNova preserve the dial’s colour harmony even in the dark.
The commemorative emblem on the caseback depicts Poseidon holding his trident alongside two seahorses, uniting the original 1956 Seamaster logo with today’s design. Inside the case runs Omega’s automatic calibre 8800, featuring a Co-Axial escapement and a silicon balance spring. Rhodium-plated and decorated with Geneva waves in arabesque, the movement is certified as a Master Chronometer by METAS, the Swiss Federal Institute of Metrology. It offers a 55-hour power reserve and magnetic resistance up to 15,000 gauss. With its foldover clasp featuring a comfort setting and diver extension, the stainless steel bracelet is worn with equal ease over a wetsuit or beneath a shirt cuff. It is a timepiece in which every detail rests on a decision, and every second on a legacy. As an authorised Omega retailer, Aykach presents this masterpiece with a guarantee of authenticity and invites you to discover it in person at its showroom in Çankaya, Ankara.
- Reference
- 21030422003003
- Brand
- Omega
- Model
- Seamaster Diver 300M Co-Axial Master Chronometer 42 mm Summer Blue
- Collection
- Seamaster Diver 300M (Summer Blue koleksiyonu)
- Gender
- Erkek
- Style
- Spor Saatler
- Case Diameter
- 42 mm
- Case Thickness
- 13.49 mm
- Case Shape
- Yuvarlak
- Case Material
- 316L paslanmaz çelik
- Case Color
- Gümüş
- Bezel
- Tek yönlü dönen mavi seramik, “Summer Blue” Grand Feu emaye dalış skalası
- Dial Color
- Mavi
- Dial Features
- “Summer Blue”, seramik, PVD işlemli, degrade, dalga desenli
- Crystal
- Safir
- Strap Material
- Paslanmaz çelik
- Strap Color
- Gümüş
- Movement
- Otomatik
- Caliber
- Omega 8800, rodyum kaplama, arabesk Cenevre dalgaları
- Weight
- 201 gr

At the Heart of Ankara, Half a Century in the Making
The Aykach boutique is more than a point of sale; it is where those who truly appreciate watchmaking come together. In a space shaped by over five decades of expertise, you can see and feel the world's most prestigious timepieces in person, and with the guidance of our specialists, find the watch that is right for you. Every visit becomes an experience. Every watch, a story that lasts a lifetime.










