- Seiko, Prospex Sea - 41.7mm Case - 2026 - Original Box & Papers Are Included
This Seiko Prospex Sea is what happens when a dive watch decides to get disciplined. Cloaked in a rich blue dial and matching bezel, it delivers that unmistakable ocean-ready look—but with a level of restraint that might surprise anyone expecting the usual oversized diver theatrics.
At 41.7mm in diameter, 12.3mm thick, and a neatly measured 49.5mm lug-to-lug, this is a watch that knows exactly how big it wants to be—and refuses to stray a fraction of a millimetre from the plan. It’s substantial enough to feel like proper equipment, yet precise enough to sit comfortably without announcing itself three rooms in advance.
The angular case design (pure Samurai lineage) gives it a sharp, purposeful edge, while the deep blue tones keep things cool, composed, and quietly confident. LumiBrite markers glow with typical Seiko enthusiasm, and the robust diver’s spec reminds you this isn’t just for show.
In a world of watches trying to be bigger, louder, and bolder, the SRPL51K1 takes a different route: measured, calculated… and just a little smug about how well it fits.
Ground shipping is $40 for purchases under $250 and free for orders over $250. Express shipping is $50 for purchases under $1000 and free for orders over $1000.
Orders are processed within 2-4 business days of placement and shipped via FedEx.
My first transaction is a 1969 mens rolex watch. Buy with confidence knowing you are getting a high quality product with top notch service. Prompt replies to questions. Watch was shipped same day and exceeded my expectations.
Sean Kasper
Review on our website
★★★★★
Beautiful store with great atmosphere. The staff is friendly, helpful, and don't put any pressure on you. We have purchased many things over the years and continue to be happy with the quality and the service. Highly recommend!
Yannis K
Review on our website
★★★★★
Great and fast service.
James Paun
Review on our website
★★★★★
Dealing with Chris was a pleasure.He is very knowledgeable and was able to answer any questions I had regarding my purchases. He gave me all the information I needed and left me to make my own decision without any pressure. He made himself available when I had questions or concerns. Prices are fair,...
Julie Sollows
Review on our website
★★★★★
Chris is fantastic. I have done several watch deals at Harmony and the service has been first rate. Highly recommend.
Nick Resetar
Review on our website
★★★★★
I was concerned that my gold earrings were going to be expensive to fix, but Karen cleaned them and got the clasp to work for no charge. I so appreciate how kind, pleasant and knowledgeable she was.
Beverley Jarvis
Review on Google
★★★★★
Ordered and completed my purchase over the phone. Salesperson, Julia, was most informative, helpful and very courteous. It was a pleasurable experience buying a piece of jewellery to be a cherished gift.
Shelley Sukerman
Review on Google
★★★★★
I have made multiple watch purchases from Harmony Jewellers and make it the first place I check when I'm watch shopping (for either new or pre-owned). The service is excellent and the staff knowledgeable and always friendly.
