Seiko Prospex LX Line (Developed in Collaboration with Ken Okuyama Design)

Ever since it released its first diver’s watch in 1965, Seiko has created many watches that have found favor among sportsmen from professional divers to explorers. Among these many creations, the 1968 Seiko Professional Diver’s watch became one of the most favorite timepieces of sports watch enthusiasts, thanks to its robust design and high functionality.

Today, the spirit of this classic sport watch is expressed anew in a line of watches for sports on land, in the sea and in the sky. The line’s name, LX, hints at the Latin word for light and is a subtle nod to the way that light is reflected in the broad, flat surfaces of each case.

When, at the 2018 Grand Prix d’Horlogerie de Genève, a Prospex re-creation of the 1968 Professional diver’s was honored with the Sports Watch award, the Prospex design team allowed themselves a moment of profound satisfaction. Not only had their creation won the highest possible award for a sports watch but the world’s respect for the design on which the LX line is based was, once again, amply demonstrated.

The design of the Prospex LX line strikes an unusual balance. On the one hand, it is true to its heritage and its overall appearance reveals its strong link with the 1968 professional Diver’s. On the other, it is thoroughly modern in its execution. The center of gravity of the case is lower so that the watch sits comfortably on any wrist. The upper side of the case is set at a more pronounced angle to allow the Zaratsu-polished surfaces to shine more brightly.

Most of all, the contemporary feel of the LX line is revealed in the use of Seiko’s advanced 5R Spring Drive caliber, which offers one-second a day precision alongside high levels of shock and temperature resistance. With these attributes, 5R is the perfect caliber for use in all types of sporting and adventure environment; it has been worn successfully both in space, when it travelled to the International Space Station and was worn on a spacewalk, and at the top of the world, when Yuichiro Miura wore a Spring Drive watch on his third successful ascent of Mount Everest.

The LX line was developed in collaboration with Ken Okuyama Design. With his international experience in the design of automobiles and other high-profile products, Ken Okuyama brings his own special creativity to Prospex LX.

All watches in this first collection have the robustness, legibility and reliability that every sport or adventure demands but different functions have been incorporated for three specific activities. The land version has a GMT hand and a compass bezel for direction finding. The sky version also has a GMT hand and a bi-directional bezel for showing time in an additional time zone and the sea version has a uni-directional bezel to indicate the length of a dive.

In addition to three versions in a light color titanium, the LX line offers a special series of three all-black interpretations. Stripped of all color and reduced to its essentials, the simplicity and strength of the LX design asserts itself in this quietly dramatic design. The case is treated with a black super-hard coating and the flat surfaces are Zaratsu polished. The sky and land versions are presented on leather straps while the sea version is offered with a silicone strap.

Technical details

Seiko Prospex LX line

Caliber: Spring Drive GMT 5R66 (SNR025, 027, 033, 035) Spring Drive 5R65 (SNR029, 031)
Driving system: Automatic
Power reserve: 72 hours
Accuracy: ±1 seconds per day (±15 seconds per month)
GMT hand (SNR025, 027, 033, 035)
Number of jewels: 30 jewels

Titanium case and bracelet with super-hard coating (SNR025, 029, 033)
Titanium case with black super-hard coating (SNR027, 031, 035)
Diameter: 44.8 mm
Thickness: 14.7 mm (SNR025, 027, 035, 033) 15.7mm (SNR029, 031)
Sapphire crystal with anti-reflective coating (SNR029, 031)
Sapphire crystal with super-clear coating (SNR025, 027, 033, 035)
Screw-down crown, screw case back
Water resistance: 300m saturation diver’s (SNR029, 031), 20bar (SNR025, 027), 10bar (SNR033, 035)
Magnetic resistance: 4,800 A/m

Titanium bracelet with three-fold clasp with push button release and slide adjuster
(SNR025, 029)
Titanium bracelet with three-fold clasp with push button release (SNR033)
Calf strap (SNR027), Silicone strap (SNR031), Crocodile strap (SNR035)

Approximate recommended retail price in USD: $5,000 (SNR025, 027), $6,000 (SNR029, 031), $5,500 (SNR033, 035)

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