Seiko Presage Cocktail Time “Blue Moon” Automatic (SRPB41J1)

The Seiko Presage Cocktail Time “Blue Moon” SRPB41J1 is one of the signature models of the Japanese manufacture’s Cocktail Time collection, pairing traditional mechanical watchmaking with a dial inspired by Japanese culture. Its defining feature is the deeply textured blue gradation dial, whose radiating pattern shifts from vivid blue to near-black depending on the light, taking its inspiration from the Blue Moon. 

The 40.5mm stainless-steel case is finished with a polished bezel and paired with a multi-link stainless-steel bracelet, while elongated faceted hour markers and dauphine-style hands reinforce the refined dress-watch character of the Presage line. A framed date aperture sits at 3 o’clock, complemented by a box-shaped Hardlex crystal that adds a subtle vintage influence to the otherwise contemporary profile. The case measures approximately 11.8mm thick and is rated to 5 bar of water resistance.

Visible through the exhibition caseback is Seiko’s Calibre 4R35, a 23-jewel automatic movement offering both manual winding and stop-seconds functionality, together with an approximate 41-hour power reserve. The transparent screw-down caseback gives a clear view of the mechanical movement and its gold-tone oscillating weight.

This example is brand-new and unworn, with its original Seiko tags still attached and protective material retained on the watch. It is presented as a full set, accompanied by its original Seiko presentation box, outer box, documentation and a stamped guarantee dated 2025. 

• Condition: Brand-New
• Package: Full set