This 42 mm Seamaster Diver 300M (ref. 210.30.42.20.03.003) has a case and bracelet in stainless steel. The ceramic dial, in OMEGA’s own Summer Blue, is PVD-treated and has a gradient finish to reflect the watch’s level of water resistance. It also includes the 300M’s famous wave pattern.

A blue ceramic bezel with a Summer Blue enamel (Grand feu) diving scale encircles the dial, which has rhodium-plated skeleton hands and raised indexes, filled with a unique light blue Super-LumiNova.

Turning the watch over reveals a stamped commemorative Seamaster logo depicting a trident-bearing Poseidon and two seahorses: OMEGA’s 1956 original and the brand’s current design. Behind which sits OMEGA’s Co-Axial Master Chronometer calibre 8800, certified at the industry’s highest level by the Swiss Federal Institute of Metrology (METAS).

OMEGAS's Summer Blue Collection is a special edition released to commemorate the 75th anniversary of the iconic Seamaster line. This collection features 11 stunning models, each adorned with a unique gradient blue dial that symbolizes their water resistance capabilities. From lighter blues for less water-resistant models to darker hues for the most robust timepieces, the Seamaster Diver 300M Summer Blue stands out as a key highlight.

The Seamaster Diver 300M Summer Blue is a centerpiece of the collection, blending heritage with modern innovation. Known for its distinctive wave-pattern ceramic dial, this model features a gradient blue finish that transitions to black at the edges, enhancing its visual depth.